I've got the classic icons, classic theme with the wave coloured blue, and the background on original which adds the sparkles....looks awesome...makes the background feel alive while at the same time not being intrusive.
I like the clock fix, and the new info bar thing which tells me how many friends are online as well if I have any emails, also like the new more visible loading clock thing.
I've read that the PS3 can now natively see deeper folder structures with out having to manually go into the see all option, but I have yet to test this my self.
I've also read something about new updated codec support for divx and such, but again I have yet to confirm this my self.
One thing I'd love to have is the ability to see DLC and install files separated, that way I can keep the DLC but delete the install files as need be, I'd also like the ability to defrag my HDD on the PS3, but apart from these pet peves I've got to say that I'm some what satisfied with this update...it's not as big as 2.40 was, but it's way better than 2.76 and 2.80.