Same happend to me. I never received the service quality they are promissing. Download rates were far far way, ping times horriable. I was sticking with them, because there was no other ISP at my location. Now they still want to have the early termination fee. Today I spent 1h on the line incl. talking to the manager, becaused I didn't received a written confirmation and they explained me that they are unable to send it again. I received their promotions, the request to do another service, but surprise surprise the cancellatio confirmation gets lost.
The provide the most worst customer experience I ever experienced. They were unable to fix any reported probnlems (technical or account related), that sucks. Now I have to pay anoth $170 to get rid of the **bleep**.