I must be a whole lot luckier than most. I had a 522 with a serious audio lag problem and no caller ID. The CSR walked me through a series of tests (reboot, etc.), and concluded that the receiver was at fault. He gave me an RA# and said I'd have a replacement within 2 days. Sure enough, it came UPS Air the second day. It is a remanufactured unit, and while not perfect, it is very good. The CSR said they are catching hell about the bugs in the 522, but no one tells them when they are doing a good job. Well, I was pleased (and glad it was a leased, not owned, unit).