I've had PureTalk for several years…
I've had PureTalk for several years already. Since it uses AT&T towers, it's the only one that works at my vacation home in the upper peninsula of Michigan. The only problem has been that my cell phone pings off Canadian towers more than American towers. I called and talked to a representative named Therese today and asked if there was any way I could purchase more roaming-Therese helped me to change to a new plan that cost no more but increased my roaming to 3x what I've had in the past. That should definitely help!