I live in Carlsbad and have time warner. I have no landline (just cell) and my cable+internet is around $100 after they tack on all the fees. I have not had any problems, I had considered switching to ATT as well (who can resist a great deal). Had a few friends in the area switch, it was horrible. ATT told them they would have service, turned out they had a bunch of problems and the maintenance guy basically said “sorry your wiring doesn’t really support this service”. One of my friends has a home office and was trying to get everything bundled so the work would cover all the costs….really screwed him up and he ended up being without service ’cause the ATT failed and he had to go back to time warner.