We installed our system in the spring of 2016. We had lived in our house for nine years and were never able to sit outside without being eaten alive during the best times of the year. This year, we were able to enjoy our beautiful yard without incident. I can count on one hand, the number of times I even saw a mosquito..... It was like they magically disappeared. I would highly recommend that anyone considering installing a system just do it. It was the best investment I could've ever made for my yard.