I recently had APS install a security system at my place of business. My husband an I interviewed 3 or 4 companies before making a decision and chose APS. I have to admit, we were considering on of the larger national companies but decided to go with APS (based primarily on the salesman). I have to say now, we are very happy with the system, installation, monitoring service and the price. We have a system at our home and when the contract there is over, we will call APS for our residence too.