I was impressed working with Sprint last year. We configured a new solution for a client that absolutely had to have this. His folks are using the global solution and keeping everyone on the same network. After following up a few months later I was informed that the reliability and quality of their service was going well.
During my tenure as the onsite Field Services Tech in Michigan I routinely dealt with Sprint on installations, configurations and maintenance. I have always thought their technicians were very knowledgeable. I supported numerous sites in Michigan and I always enjoyed working with the techs.