We've had U-verse for 4 years now without any major issues. Only issues we had were on one summer back then where the gateway should began to restart every couple days but that was fixed by itself after a little bit. The only other time was when our gateway was failing a couple months ago.
Ignore those errors that occurred 17 hours ago as they were probably maintenance as my line stats improved slightly.Before 17 hours ago I only had corrected blocks without any uncorrectables,errors, failures, or link retrains.