Horrible, simply horrible. I was a 20+ yr Sprint customer. Now it's T Mobile. It was promised a faster better network. I can only use the phone to talk n text, and even that is spotty. I can not update apps. No data connection. Can't play games. No data connection. YouTube buffers endlessly. Yet I was promised faster better service. Switch on my premium wifi service, everything works fine. Yet, I'm paying for a premium cell data service. Faster, better, my hind end.