[lxcivic4life]

I installed it last night. So far here is what I have personally noticed...

-Faster phone boot up
-Smoother TF3D (Much faster than before)
-Much faster opera browser
-Better Youtube app
-Battery life is a little better
-New slide-to-answer and hold call features
-Better Sprint Nav and SprintTV

Bugs so far that I have noticed....
-Battery icon will not show up at the home screen if you have the show clock setting checked. (Very annoying)
-Still start out with about 45mb of phone memory

Overall if you don't wan to flash to a custom ROM, I would recommend upgrading to this one. Much more stable than before.