The only review I quickly read and it completely goes into the fact of the loading which was my primary reason to uninstall when I tried the demo. Too much load, too long, and too often. It's not fun when you are spending your time mostly staring at a loading screen.
The worse was I joined a mission/team that was just about to finish the mission. After all the loading time to get in, I was then stuck at a loading screen within 3 minutes of game play just to get out. Terrible.