I am very impressed. I called the US Mobile service number for a rather complex and troublesome issue (no fault of theirs.) I was almost immediately connected with a live human! I worked with a charming agent named Nobel, who was not only incredibly friendly and polite, but was very patient in walking me through the troubleshooting process, was able to solve all of my problems, had immediate answers to nearly all of my obscure questions, and was able to very quickly procure answers for the rest. This level of service has absolutely solidified my decision to leave T-Mobile.