I like it, nothing groundbreaking though. What graphics card you got? You'll be missing some of the effects if it's not able to support them.
It was weird to get used to at the start (the way you navigate thru folders and stuff is different), but not too bad now.
Hmm what else...DrNo, anything I missed?!

It's like a patched up and made-over version of XP. I've not had XP installed on my desktop so can't do a direct comparison, but it's quite fast (probably faster boot time), IE7 fits in a bit better than it does on XP, search is a bit more speedy (well, a lot - and searches emails too), the sidebar thing on Vista is rather spiffing - shows weather, time, ram usage, rss feeds, etc, networking is meant to be easier, i'm not convinced on that just yet though.
Oh it also has the added bonus of not working with a lot of programs

I can't copy songs onto my Sony mp3 player at the mo as the awful sony software which was bad enough to use on XP doesn't work after the first go in Vista. Several other progs don't work (I had Nero problems), but I expect after it's properly released these will be updated...i hope.
I've been running the pre-RC release, so stuff will be missing or broken in this (eg media centre doesn't work so I can't sync pdas), but will be working in the final (if not already working in the proper RC).