Yep they are really bad, I have a friend in SC who was with AT&T for years, but sent from a basic phone to Atrix, but did not get the unlimited, so he was going over the 2GB per month, and arguing with them about unlimited.
I thought He would have just been more careful but nope made a dumb move I tried to advise against, and he knew it.
Left AT&T to go Sprint just for the Unlimited Data, but I told him not worth it with their speeds and service.
What does he have now, Unlimited Data with a new smartphone on Sprint with unlimited txt and minutes, that is the good.
The bad is he hardly gets service anywhere he is there, and I told him what good is the unlimited data if he can not get service.
The situation, he is now fighting with them as he is into a new contract with Sprint 30+ days so they will not let him out, and he is going to have to leave and pay the ETF which he can not afford to do, so if he does not switch and pay the ETF, he will not get much service, so we will see but Sprint is not much help, all they say is they do provide service in Columbia SC???
We will see what happens, but so far everyone I know is complaining about their network speeds on the newer smartphones.