Time Warner has a non-compete with other large cable internet providers in order to not have to worry too much about customer review, keeping prices low, nor providing great service. The only reason the speeds jumped up recently was due to Google coming to town and providing the only decent competition to date. Meh out of 5.
T-Mobile is changing the game with data service, and is soon to be the sensible alternative to streaming media content. Time warner is too expensive for what you actually get.