What makes macOS Sierra stand out is how effectively it unifies the Apple ecosystem through features like Universal Clipboard, Auto Unlock via Apple Watch, and seamless iCloud Sync for Desktop and Documents. With Siri arriving on the Mac, along with intelligent on-device machine learning in Photos, Sierra adds practical, actionable AI that fits naturally into everyday workflows. At the same time, additions such as Universal Tabs, Picture-in-Picture (PiP), and Optimized Storage noticeably improve the overall UI/UX and help the system feel more efficient and responsive. As a $0 free upgrade, Sierra also simplifies desktop management and keeps onboarding frictionless, delivering strong overall value while reinforcing Apple’s deep hardware-software integration. Review collected by and hosted on G2.com.

There’s nothing I dislike about it, but there are some limitations in how it can be used. Review collected by and hosted on G2.com.

My favourite feature of macOS Sierra is Universal Clipboard, which lets you copy something on an iPhone or iPad and paste it directly on a Mac. It makes working across Apple devices much more convenient and moreover it has introduced me to the AI model siri where i can easily do search files, get information, and perform tasks using voice commands, and it included auto unlock using my apple iwatch. And i have used music production apps such as mainstage and logic pro x where it runs seamlessly n this os and gave me a better experience. Review collected by and hosted on G2.com.

one thing I dislike about macos sierra is that it offered relatively few major innovations. While it improved integration with other Apple devices, some features, such as Siri, felt basic and less useful than expected Review collected by and hosted on G2.com.

I like macOS Sierra because it’s easy to use and very clean. It lets me open apps, find files, and get my work done without much confusion. I also like Spotlight search because it helps me find things quickly, and iCloud helps me keep my files safe and connected across my devices. Overall, it runs smoothly and makes my daily work easier. Review collected by and hosted on G2.com.

What I dislike about macOS Sierra is that sometimes it feels slow on older computers. Some apps take longer to open, and the updates can be confusing for new users. I also feel like storage fills up quickly, and it doesn’t clean up files often enough. Overall, performance and storage management could be improved. Review collected by and hosted on G2.com.

After using macOS Sierra for a longer period, I came to appreciate its consistency more than any individual feature. The operating system remained stable during extended work sessions, handled multiple applications without noticeable slowdowns, and required very little maintenance. I also found the built-in storage optimization tools more useful over time, as they helped keep my system organized without much manual effort. Overall, my experience has been positive because the operating system continues to provide a dependable and efficient environment for both work and everyday tasks. Review collected by and hosted on G2.com.

One area where macOS Sierra could improve is application compatibility during major updates, as some third-party software may take time to fully support the new version. I'd also like to see more flexibility for advanced users, such as additional customization options for the desktop and file management. While the built-in features are polished, expanding them further without requiring users to rely on the broader Apple ecosystem would make the operating system even more versatile. Review collected by and hosted on G2.com.

One feature that really stands out to me is Siri on the Mac. It makes quick tasks much easier—like finding files, checking the weather, or setting reminders—without having to open a bunch of apps. I also really appreciate how smoothly it works with other Apple devices. If you use an iPhone or iPad, things like copy-and-paste between devices and automatically unlocking the Mac feel natural and genuinely convenient.

I like that the system stays clean, straightforward, and easy to navigate. Even the basics, like managing files in Finder and using storage optimization, make everyday work feel less frustrating. Overall, it strikes a good balance between stability and useful features, without ever feeling overloaded. Review collected by and hosted on G2.com.

One thing I dislike about macOS Sierra is that some of its new features felt useful only if you were already deeply using the Apple Inc. ecosystem. For example, features like auto unlock and clipboard sharing work well, but mostly when you also have an iPhone or Apple Watch, so users without other Apple devices do not get the full benefit.

Another drawback is that older Macs sometimes became slower after upgrading. Review collected by and hosted on G2.com.

I really like how macOS Sierra lets me streamline my communication between my iPhone, my iPad, and my computer. The micro SDI experience is really good, and I appreciate the mirroring feature between macOS and the iPhone, which allows me to check my phone while working on my computer. It’s great that I can pick up work calls quickly and easily through my MacBook because it’s synced with my iPhone. I'm particularly fond of the clipboard feature, which works seamlessly across my MacBook and iPhone, especially for copy-pasting and handling verification codes. In terms of compatibility, macOS is very compatible with most enterprise software, which is super useful, although there are some limitations. Aesthetically, macOS Sierra is really good, with a clean design without ads and focused on privacy and security. The build quality and design are excellent, setting Apple products apart. The initial setup was pretty straightforward and easy to use, which is really appreciated by beginners. Overall, the reliability and build quality of Mac systems make them popular among my coworkers. Review collected by and hosted on G2.com.

Sometimes software is not compatible with macOS and only with Windows. It could definitely be improved. Review collected by and hosted on G2.com.

I like the minimal design for the UI and the battery optimizations, which make macOS Sierra fast and snappy. It has a huge library of apps, and things are well-organized, with admin features mostly hidden, reducing clutter and mishaps. The minimal UI and shortcuts help me quickly switch between apps, and on my MacBook Pro 14 inch, I'm getting a full day of battery life after a productive office day, which includes coding and meetings. Review collected by and hosted on G2.com.

The ability to be customized is a bit low when compared to Windows. It is somewhat like working inside a restricted environment. Maybe more customizations, and more support for AAA games. If you are coming from a Windows PC, you'll experience a slight learning curve while setting up your Mac. Review collected by and hosted on G2.com.

I liked it quite a lot because I was able to try the virtual assistant for the first time, which allowed me to search for files, send messages, and look up information using voice commands or by dragging results to other documents.

Their Universal Clipboard really made a difference to my workflow across devices. It's so much easier to copy text or an image on my iPhone and instantly paste it into a document on my Mac without needing to use email or AirDrop. Review collected by and hosted on G2.com.

Since 2019, when I received the notification that security patch support was no longer available, its usability has declined, forcing me to update to newer versions. Browsers like Safari no longer receive updates in this version, and other applications have also stopped working in their latest versions for this system. Review collected by and hosted on G2.com.

I appreciate macOS Sierra for fixing many bugs and providing a seamless experience with the software I use for graphic designing. Adobe products work nicely on Sierra, which is important for my work. I enjoy being able to search files and send messages more quickly than the previous version, and I like that I can quickly preview all my files. The iCloud integration works seamlessly now, and the previous sync issues have been fixed, which is a big plus. Multitasking is good, with no hanging, and I find the Picture-in-Picture feature useful when I playback a video while working with other applications. The files feel auto-optimized too. Setting up macOS Sierra was straightforward and didn't require a technical person; my Apple ID was enough to get everything up and running quickly. Review collected by and hosted on G2.com.

I think it is a global feeling, Apple is too fast upgrading the versions. Not a revolutionary change. Also nothing is so new to this world. They are adjusting the UI which consumes more RAM power. For the powerful workstation, why the animated UI is needed? For personal use it looks fancy. But user like me feel it is too much for a workstation. Also when the new releases coming, Adobe also having some conflicts with it. Sometimes we need to re-configure our servers due to glitches. Too much charges for Apple music products. Review collected by and hosted on G2.com.

I find that macOS Sierra has an intuitive feel. Its layout is very user-friendly and allows me to navigate quickly without having to think about where things are. I liked seeing Siri come to the Mac as well, which made finding documents and receiving information much easier. I also enjoyed that it let me seamlessly switch from another Apple device back to my Mac. I really like that Sierra was able to give me a nice balance of simplicity, cleanliness, and organization while allowing me to be productive. Review collected by and hosted on G2.com.

I dislike how outdated macOS Sierra feels compared with newer versions of macOS. At this point, some apps and features are no longer compatible, so they don’t run as smoothly, which is frustrating. I’ve also noticed that my Mac can slow down at times when I’m using multiple applications at once. Lastly, while Siri has been helpful for me overall, I find that it doesn’t work as well or as accurately (and/or as completely) on my Mac as it does on other devices. Review collected by and hosted on G2.com.