Yeah, pretty stable. I have a 1.8 GHz Pentium M processor, 1 gig of ram, and a crappy integrated graphics card. Except for anything that's graphics intensive for the OS (which in my case, includes included most of the included screensavers), things have been good. I don't really need fancy schmancy graphics though, so it's all good.
I guess my only complaint was a few of the software conflicts. Symantec doesn't work, so I just uninstalled it and reinstalled AVG, and for some reason, after several hours of AIM working fine, the window just didn't show up, so I reinstalled Trillian. I haven't for the life of me figured out why Opera's wand feature isn't working, but that's the most annoying part.
Oh, that, and how they renamed the structure of the default users groups. "Documents and Settings/All Users" turned into "Users/Public" and it took me forever to find my music files.