I have one from //build/, it's great!  I had the 900 and this is a nice upgrade.  It's bigger in every dimension than the 900, but I don't mind.  Battery life seems better than the 900.  The camera is better.  It's better all around, including reception, but I have a problem with the proximity sensor ... looks like it's dirty under the glass.  Windows 8 on the phone is great.  Highly recommended.