The focus on optimization and efficiency. Features like Compressed Memory and App Nap significantly improved performance and battery life on older hardware. I also appreciated the introduction of Finder Tabs and Tags, which made file management much more productive. Review collected by and hosted on G2.com.
The visual inconsistency. It sat awkwardly between the old "skeuomorphic" style and the modern flat design of later versions. Additionally, the initial Maps and iBooks apps felt like unpolished mobile ports that didn't belong on a desktop. Review collected by and hosted on G2.com.
