Been giving it a go on my laptop, seems alright. I won't put it on the other machines yet though, I don't want to lose the software on this one, my mother's very used to XP and would get annoyed if I changed it and my media centre(running XBMC) spends barely any time at the desktop for it be worth it.
Overall though, it seems okay. Boot times are far better now than they were when the beta first went public. Boots in something like 15/20 seconds on my laptop. It's kind of buggy with my laptops fingerprint reader right now, doesn't always work properly when coming out of hibernation, hopefully a new driver will fix that. I look forward to someone's college or something getting Win7, because they always buy VLKs and leave the regular serials on the side, meaning hundreds of free and valid keys available to anyone with a pen and paper.