Give these guys a try. The customer service is stellar, the plans are affordable and the service covers many areas.
I can't even begin to tell you how much I love this company. I was hesitant at first as I have been loyal to Verizon Wireless. I've tried all of the carriers repeatedly.
I often am traveling. T-Mobile had weak service while out in the world that isn't a city. Verizon is expensive. AT&T has awful customer service.
I gave them a try in an extra phone and loved the service so much I've switched all of my lines and my iPad over to this service.