I have bought several phones from them, they grade their phones pretty well, and most of the time you will see a picture of the exact phone you are buying.





mobilekarma.com is another outfit I have bought phones from with good results, they have better prices, some times, and tend to grade their phones more conservatively. A while back I ordered a Motorola Devour for my sister, it was graded fair, which by their definition is pretty well used, when I got it it could have passed for new.



ETA: Both of these sites sell phones that have had the SN's verified by the carriers to be valid for use. You don't sign any agreements or contracts when buying a phone from them and I have had no problem at all adding phones bought from them to contract plans with Verizon and T-Mobile, I have also activated phones from these sites with various prepaid carriers with no problem.





 

Put a WTB in EE.  I got a copule old smart phones here for Verizon that aren't used anymore.

What are you looking to replace?