Comcast will do anything to get your service and when it sucks they are shocked that you prefer Verizon Fios (which is awesome). When I switched they called me nonstop for 2 weeks asking why I don't want their *** service that hardly ever works.
Once you do finally get rid of it they will still charge you for several months after you no longer have their products. The crazy thing is the customer service representative told me that I should be getting a check in the mail from them for overpaying, all I got was another bill.
If you can get service from ANYONE else I strongly advise it.