Blisk expands on chrome dev tools and services like browserstack to give you an all in one solution. The scroll sync and orientation controls are amazing and give you a quick route into debugging those tricky issues that you want to avoid ahead of clients...
WPMU DEV is simply the best service I have found online for a long time. their support guys are always at hand with expert advice which saves me so much time. I love their plugins but would have signed up for the support alone!
It needs a faster internet, and a faster laptop, it takes time to load if your internet connection is slow.
I paid for membership for a year, maybe a little more, and It is nice to have all these tools and resources in one place. WPMU is constantly adding services, tools and plugins. HOWEVER, literally everything offered here, other than the 24/7 general...