I have Home Premium and I like it alright. I won't be using the "Media Center" crap, though. If given the choice over again, I would have gone with Business because it has less bloat and includes Remote Desktop, which is always handy for the "professional-on-the-go".
The bells and whistles are rubbish for the most part, but I'm really digging...
The address bar/directory path allows far more navigational possibilities. Very handy.
Directory structure is no longer as confusing as it once was - no more "Documents and Settings" crap. C:\Users\Patrick - beauty.
The Windows Sidebar (lol mac rip) is pretty nice, overall. Some handy widgets...er...gadgets, sorry.
Aero interface is purty. A bit over the top with the gradients and drop-shadows, but it's nice.
Of course, I end up making it look very "Classic" - with the classic start menu and such. I don't care for the litte previews on the taskbar. The scroll between windows is nice (WinKey+Tab), though - but it's not really any more useful than Alt+Tab.
Really, it's just a pretty version of Windows XP.