I recently changed to AT&T for my cell phone and online services. I attempted to do this online and was just not comfortable doing so.
I went to our local AT&T store and I have to admit I was totally floored by all the rebates I received. I ordered family plan with two extra lines, new phones and online service for my home computer.
We received a total of $345 in rebate both instant and mail in. This was done without any effort by the sales rep and I never once signed for anything I did not want.

I just received my final mail in rebate which was for $50 for the computer module. Its in the form of an AT&T debit card and I have already used $30 of it with no problems whatsoever.

So I have to say I have had nothing but good exeperinces with my rebate processes.