The back is quite slippery. I gave one to my brother and we decided to get a case before ever taking it outside. Seems like a nice phone so far. I have another one new in box; I'm trying to decide between it, my new S2, or even my scratched up OV (cheap plan, cheap phone!). My 4G 7+ tablet should be here today so I no longer need a large phone. I've even been considering going to a talk+text plan only. I spend too much time on my phone doing nothing.
FWIW, I bought both of them new from TMO online with 2 $50 cards, shipped and with tax, for just under 400. One was supposed to replace my girlfriend's broken iPhone and the other was supposed to replace my OV. I then went and bought a new S2, paid for but don't appear to be actually getting a like new S3, and a 4G tablet anyway. FML.