I have to say, it runs extremely snappy on my machine (Intel Core 2 duo P8400 w/4gb RAM). More snappy than Vista Home Premium that I was running before, of course I have only loaded about 15 applications.
It didn't load a few drivers for me, my HDMI out needed updated drivers, my fingerprint scanner didn't load, and I still have about 4 items in device manager that are missing drivers, just haven't bothered figuring out what they are yet.
Windows Gadgets still suck as it only has a few and the gallery for those are complete rubbish.
I love the new taskbar, I find it makes me feel like I am doing less even tho I have a 100000 windows open. It seems like a nice upgrade