The Only thing holding me back from jumping right into this plan is that they are not yet a BYOD (bring your own device) program. They Are however beta testing it and working towards allowing Sprint phones with clean ESNs onto their network. As soon as they've got this streamlined, I Am In.
Now for a bit on what a waste of money cell phones are. Seriously guys, prepaid plans! Get yourself a tablet/kindle/ipad that does all the cool stuff with wifi and run away from data as fast as you can! Get a cheap feature/basic phone that works and use it for texting and calling. Better yet, get a VoIP phone and only buy a few minutes on your cell phone for Emergencies Only. This is a no-brainer. The world is so caught up in having all of their stuff in one place when it would be so much cheaper to split it apart: GPS (one time buy) for your car, tablet/kindle/ipad (one time buy) for all of the capabilities of a smartphone without paying for data, VoIP phone (magicJack Plus $30/yr) for unlimited calling nationwide, and a basic phone (less than $30/mo without data) for texting and Emergency Only calls.
Watch your monthly payments come down and watch the money you save grow.