I have been using US Mobile for 3 months now and am very happy with the serice. Had some technical issues with my phone service after returning from another country, I was indeed very lucky to have customer service agent Nobel on the line to help me. He is a thorough professional, polite and has great knowledge. He fixed all the issues I had with the phone service and went above and beyond to make sure everything was working fine and I don't run into any issues later on. I have never met anyone who would do such thorough testing to make sure of that. I would give him 6 stars out of 5.