We switched ISPs when we moved to Texas, and the only complaint is that it took 2 weeks after we moved here to get hooked up. Other than that, the installer did a nice job of putting in the required hardware and so far we are happy with the service.
Poor installation and internet that did not work in areas of our house. When we tried to terminate service after just one week, customer service communicated that they could not terminate until the first billing cycle concluded. Terrible experience and not good business practice for a company to refuse to terminate services when a customer requests it due to poor service!