Yeah,but in the US you have coverage problems with most of them. And in Poland, basically they all have great coverage. I've used two of the major carriers, did

Yeah,but in the US you have coverage problems with most of them. And in Poland, basically they all have great coverage. I've used two of the major carriers, didn't have coverage problems even in remote parts of the country. (HSPA+, but even LTE is getting pretty universal)