I use the RW Moto X. I've had it since they launched it, and it's fantastic. I use it with the $25 3G unlimited everything plan because there isn't much 4G service here. It works perfectly, I've never had any dropped calls due to the Wifi calling. I can't recommend it enough, it's a great phone and the service is amazingly cheap. My sister has an Iphone on one of the other Sprint MVNO's and she's paying a fortune, and isn't allowed to roam on Verizon tower's like my RW phone can.