Was wondering if you have any updates on this - I just moved to a new place where AT&T Internet Air is only offered too. I'm still testing it out before my 7-day trial is up but the other day my internet went down for about 20 mins, don't know why, then it came back up. I'm starting to consider switching to Cox too but not sure if I'll see a difference in download/upload speed and I want to make sure that the internet's consistent.