I'm not 100% sure which branch of Superior Home Systems came to my home, but I would avoid all of them. We just bought a house and are doing a lot of work to it, including refinishing the hardwood floors, painting, etc - and installing a central vac system.
The guy that did the install was incredible sloppy. He didn't clean up after himself at all! He left wires, plastic bags, old covers, trash, and other bits and pieces all over the house. He didn't show us how to work the system or what each of the attachments were for. But what made me most upset was that he put an enormous, very deep scratch in our JUST-refinished hardwood floors that we now have to pay to have re-sanded and repaired. Because our townhouse is on 4 levels, and the guy didn't bother to do any kind of walk-through with us to explain the system, we didn't notice the scratch until right after he left. We immediately called the office to complain, and were promised that someone would get back to us - it's been a week and no one has contacted us.
Absolutely terrible experience.