I started using Brezden when I moved into my home which had been empty for about 2-3 years. During that time critters made it their home and Brezden to the rescue! They came out saw my distress of no sleep and were all over it and help me get under control/eliminated the critters in my home and always leave me a note or follow up with a call. All I can say is THANK YOU and now I am actually sleeping out night even with the lights out :)