I've had Centennial wireless for two years and would have to say that I am completely fed up.  The website won't let me log in unless I jump through more hoops than my banking website, my last three statements were nowhere near correct, and the payment due that I got online, through the mail (twice, might I add) and on the phone all contradicted each other.  I can't even talk on my phone in my own home, I have to go outside if I want to talk without the call being dropped every few minutes.  I just found out that you have to submit cancellations in writing thirty days prior, even if your contract has run out!  I agree, if you want to get shafted and go through 2 years of hell, then centennial is, indeed, the way to go.