I had ADT security system installed by Gaylord Security in January after two issues in one week in my new home, which I found out was in a bad neightborhood for crime. My system was installed quickly, the installer was professional and very helpful as I had lots and lots of questions. We are very on pleased with this. Our house is clearly marked that it has a system and have had no problems since the installation. It is easy to use and effective. Would do it again in a heartbeat.