OK.
Sprint: Phoenix, AZ
Likes - Call quality, coverage, dependability, unlimited data, any mobile, free nights/weekends, no complicated restrictions or tracking of my usage.
Dislikes - Super slow, almost unusable 3G, the worst customer service you can imagine (phone, internet, store), an attitude of the customer is the enemy, warranty issue nightmares, back door fees when you aren't looking, habit of switching you to a different plan that benefits Sprint and not you when you aren't looking, lies, lies, misinformed, undertrained and uninterested in your problem CSRs, lies, incompetent licensing and no supervision of third party, non-corporate Sprint stores.
Star - One out of five.
Why I stay - because LTE is now here and expanding in my area. Sprint's call quality and dependability mean that I do not have to speak with them very much. I pay online so I have limited contact with customer service. You can get by just fine with Sprint if you never have to talk to them.