For most improved customer service. Haha! keep it coming sprint...nxt up sprint 4G lte!
Sprint already gets some of the best phones, unlimited data, now best customer service.
When lte hits the now network its a wrap, js.
Thats not best customer service, thats most improved. Old Sprint set the bar pretty low so they had a lot of room for improvement. That said I've had incredible cs experience with Sprint since the Palm Pre launch. Data service not so good, but when I've had a problem they could actually fix they've been fantastic.