What does Comcast do well? Comcast has come a long way in recent years. Originally, their customer service was a joke, but they have taken steps to improve how they interact with customers. Also, the Xfinity mobile is a real bargain if you don't use too much data and their internet service comes with free Norton software.
What does Comcast not do well? The price of their TV packages is too high. They claim they can be customized, but they really are much of a customization.
What do you wish you had known about Comcast before using? There's nothing I wish I knew. I just wish that Comcast would have improved their customer service sooner.
Have you used a competitor to Comcast? If so, how does it compare? I have tried Time Warner and Verizon Fios, but I clearly prefer Comcast.