I don't know. I always think about switching but what would I save maybe 10 or 20 dollars to leave the best service. In NY I seen Verizon to be the best. I get full service where some people are lucky to be-able to text.
I tried T-mobile and it's not terrible but in a lot of rural areas it's bad. In cities around me I'd get great coverage but in places like Port Huron I noticed a lot of dead spots. I know all carries have them but they need to expand their coverage . If they'd simply expand their rural coverage then I'd reconsider them.