It was what I was expecting to be honest - a slightly smaller 360. Not crazy small, just a little bit.
Built in 802.11n is a nice touch, seeing as MS charge insane money for their WiFi adapters, and they have been playing catch up to the PS3 (especially the Slims) for built in features.
Stuff I don't like? Gloss! Sony realised glossy didn't work that well and went to matte, but MS have done the opposite. Still stuck with a custom HDD, which will no doubt be overpriced for replacements.
Will I get one?
Probably not. I've got a recent FF XIII Super Elite 360, so this offers me very little - literally built in WiFi vs. my adapter, and power/noise. Not worth the money.