I was using this MTS Post paid for past 2 years without any other option. The speed is good compare to other wireless. But they cheat once you buy extra bytes, I faced this problem twice.
When our data balance finish and if you recharge with extra bytes then in few hours the bytes will vanish and they will say that you have consumed the data. They will not even give us the detail . Customer service and APPELLATE office will say same thing no use.This happen when I purchased 1 GB and 5 GB, It becomes there trick.