I like the GPP A lot. A huge issue was fixed with the repeater tweak. Humans can now have some more map control, while in 1.1 aliens often had control of the whole map since they are not as dependent on their base. Now humans don't have to venture through miles of enemy territory to get to the alien base, a luxury which was often only granted aliens in 1.1.
I aslo like the new focus on teamplay in the aliens in GPP. Since aliens have been nerfed on the bigger classes, and buffed on the small. (basi, mara zap, is really useful.) These changes leads to less cowering in base for the human part, and less waiting-by-the-doorway killwhoring on the alien team. These were the big turn-offs with 1.1, and it's more or less gone! Good job!