I've used many bug zappers over the years and this one is the best so far. I was skeptical at first because it was so small compared to previous bug zappers I've owned, but every week I need to clean the grill out because it is so heavily packed with bug corpses. The local frogs have taken to hanging out near the bug zapper because it attracts so many nasty biting bugs. I LOVE this zapper! And we have gotten so much rain this summer (Minnesota) that the mosquitoes are just thick, this zapper actually makes it safe to go out doors again.