After reading the reviews on this i decided to take a chance. I wanted this mostly to control med and Caribbean fruit flies.  I have 17 fruit trees around my house. I also wanted to get rid of Mosquitoes. Yes i know that bug zappers don't attract mosquitoes.  For those who complained the lure did not work i would refer you to a number of web sites which clearly state that different types of mosquitoes are attracted to different lures. I live in central Florida and I ran a home study on lures and sure enough in my case the Octenol lure that came with this did in fact attract a lot of mosquitoes. In a controled test putting another unit with the same lure in my screened pool area i found it worked very well on that unit as well. So yes in my area that lure worked and so did the Bug zapper. Yes it kills some beneficial bugs sorry folks but have you noticed how many eggs and insect lays.  I don't think this is going to wipe out the population of any insect. I have found no bees, wasps in the unit to date.