It's been a 7 year journey for myself. I too have been lied too, they have put false notes into my account records, retentions has hung up on me twice because they couldn't figure out an answer to my question...just to name a few. It really was the hing they just told me that really drove that final nail down. The lady told me that Sprint couldn't guarantee coverage inside my house inside the coverage map. Where my apartment is in comparison to the towers around me, I should be swimming in signal. They sent me an Airave which turned out to be a joke. It does nothing more than route your phone calls over the internet and act as a wired router. Also found out that if you don't log into the Sprint website and tell your Airave too only accept your number, then all it does is act like another Sprint cell site. Thus giving in my building with some kind of Sprint service better signal thanks to my cable internet. They don't tell you that, only if you ask about that specifically. That's not the only thing that has really just drove me over the edge. Just like the OP said, service has just went down hill to the point that I just can't take it any longer. I now have a Nexus 4 on the way and will be a proud pre-paid T-Mobile cell customer from here on out. So long Sprint, I really wish this could of worked out...but it's not me, it's you. Take care of yourself, for I fear that if Sprint doesn't get this 4G roll out right, then this will spell the eventual end to them. Bye guys, it's been real.
P.S. By the way, just an fyi I found out. If Sprint ends your contract early and doesn't charge you the ETF, you have to send your handset back.