Got one today, first impression was to make out with Drinky.
My bad, its ok, ok if you like being treated like a 5 year old. Its basicly MS copying Apple and has none of the normal things you would expect from a windows product like flexibility in item management. You have to use Zune to put media on it, which doesn't work at all for me and crashes my PC. What happened to drag and drop? I would say its iTunes bad but it doesn't even work for me so its even worse.
Phone doesn't let you download things from the internet or SkyDrive, what the hell? Is this bizarro land where MS is trying to be Apple but then ironically Google gets sued instead (and Android offers the real windows experience of customization and flexibility)?
On a final note, what's the point of Xbox integration if you can't purchase things with your MS points? Half assed effort there MS.
In short after 4 hours I don't have any songs on my phone and one game for which I had to use my CC instead of my MS points.
I conclude that Windows phone is great for people that want a gorgeous looking OS, great social media integration and a Windows logo instead of Apple.