I used it for a little while on my laptop (It came preinstalled), then changed back to win2k. In my experience, XP is a nice OS, stable, good looks, some nice features. However... It still has some bugs to work out (INFINITE LOOP!!! GAH!!, espicaly with my laptop, since the nvidia drivers conflict with XP's speedstep implementation.) I love it how it auto loads drivers for network printers it encounters, boot up times are great...if only they would fix some of the bugs!!