We have used Fog Off all summer and it has made a massive difference to us being able to sit outside and entertain (socially distanced), comfortably in the evenings. There have been virtually no mosquitoes - the very odd one but basically none. My wife, who is usually mosquito central has had no bites, which means she is very happy. Sam is always prompt, courteous and does a thorough job spraying our hedges, garden, trees and terrace areas.