Have bought 6 of them for rodent control in 5 locations. In one house, noise from rats or squirrels had kept both adults awake the night before - they have not heard a sound since. I have two PestContros in my house where we have rats and many squirrels. We have not heard any since PestContros installed and don't remember even seeing squirrels on the roof outside or in their favorite little tree by the house. Our total evaluation time since the first PestContro is just over a month and the last three have not arrived yet so the above comments are early and only represent two houses. However, we expect good rodent results in the other three where rats and squirrels are known to be living. We like the night light feature too. Had to return one PestContro when it developed a 60HZ hum but got a quick replacement. Can't comment on bug control fairly - we have not seen any but we have a bug contract and usually don't see many.