Had AT&T for two years and hated every minute of it. The main problem I was having was the reliability and consistency of the internet speeds. I had later found out though running a wireshark that since everything ran off the same box in the living room (cable, internet, and phone), when you would change the channel to an HD channel or begin streaming On-Demand content the internet would lag.
even worse, we found that AT&T would never hit the speeds we paid for and Netflix speeds were throttled. Very frustrating and AT&T never gave two shits.
I am sorry to say this, but TW is the Nazi party out of all the providers out there. There are to many issues I have with that company to name, but I would go with WOW (Wide Open West) for everything. They are fast, reliable, and have great customer support. I have enjoyed WOW internet very much.