Qwest stinks. What more can I say? Their prices our outrageously high. We're paying over twenty bucks for stripped to the bone, no long distance, no call waiting, just give me the line with a dial tone. Then, we signed up for their DSL and the stupid thing keeps timing out on us. And we call them, and there is nothing that they will do, but make us continuously run stupid diagnostics. Comcast, at least in SF, is way better. But, it doesn't reach out to where I live. Then, there's the problem where they have these advertised specials, but have so many restrictions on them that you may not qualify.
However, this is a tip I can give you from experience. If you really push forward to cancel your service, and get customer loyalty or whatever it is that handles that stuff, they may work with you. Regular customer service won't do a thing. But do not be nice to them--that's the kiss of death.