Tmob works better outside of the US. Once they merge with sprint I think some of the US coverage will be better. If you fly internationally you can't beat unlimited text, wifi calling, Netflix, and Data. If you do have to talk it is 20cents a minute. I'll pay the dollar for a five minute call that needs to be made. I've never been to a country where it didn't work. Also, your phone works like normal in Mex and Can with 4G.