It depends on where you are and/or where you travel to.
I'm in Nassau county on Long Island, NY and I can't wait to get out of Sprint, I've been trying like a rabid animal to get out of my contract early, and the best they did, even though they say I can't use the service properly b/c of a local antenna problem, is give me $20 off my bill.
I've been with Sprint since 2001, moved away to a place with better service but now that I'm back here I need to get the heck away from them.
Horrible data speeds, a ton of missed calls (they go right to voicemail and don't ring my phone), I always get it where I try to make a call but it never starts to ring so I have to hangup and try again. I don't use data on my Sprint phone because it's not usable, although I do pay $10 extra a month because I have a smartphone (x3 with 3 smart phones on the plan).
Sprint is a joke, there's a reason millions and millions of subscribers keep leaving their service.