Originally Posted by
Winter_Wolf
This exactly. Add to that the fact of every iteration of UKSP breaking something else and "fixing" things that weren't broken or fixing the thing that is only broken because UKSP broke it in a previous version. Version 2.0.2 and the auto-crash to desktop every time you tried to go into Labyrinthian without using the console—which you had to do if you wanted to finish the associated quest.
That said, I still use the USKP stuff, but mostly only because some mods I have I think have flagged the UKSP as mandatory or they'll cause trouble on trying to load the game.