I'm on the Sprint EPRP (an employee referral plan anyone can get) and I pay $39 per line for 4 lines, plus the $10 smartphone fee for the lines that have will iPhones (3 of the 4). We have 1600 anytime minutes (use about 400-500 monthly for all four of us), unlimited text and data on all lines, unlimited mobile to any mobile, and 7pm nights and weekends.
Been pretty happy with Sprint for 5 or 6 years now. The data speeds and coverage are good, but not great, but I'm not complaining as even with the $10 fee it's still cheaper than the competition and AT&T is worse for coverage and not much if any better for speed in my area.