I'll be done with school soon so it's hard to predict where I'll be in the future since I'm in the aviation field. But as for now just home, school and work.It really depends on where you use your phone. But if you're debating between sprint and T-Mobile, probably T-Mobile.
http://explore.t-mobile.com/test-drive-free-trialI'm located in Tulsa, Oklahoma. I travel up to Owasso frequently. Btw how do you test T-Mobile without having to already purchase the phone and service?