 00 Larry the Salesperson was knowledgeable, and explained products well. He informed of different options and choices for our situation.Next came the installers and they were also kind, considerate and got their work done with as little bother as possible. They explained how the system works etc. and even though it seemed like a lot to remember we have had no problems in working it and it is nice to know if we do something wrong or have a problem, they will call us to make sure before it goes out as a false alarm. We are enjoying the security it gives. 