Never had one till this turkey season. Always got eaten alive when bow hunting in early fall. After hearing guys talk about them all the time I managed to "aquire" some while deployed last year. I cant believe I never got one sooner. You WILL NOT be sorry you got one. My blind will be filled with mosquitos and ill turn it on and it will clear them All out in about 5 min. The only draw backs I can think of (pertaining to the model I have, I dont know if they have different models or not but on mine) the initial clicking of it to get it started is very loud, the fuel cartridge only lasts 10-12 hours so you have to change it nearly every day and I have no idea how much they cost, and the little piece that u put in that has the scent on it only lasts 3-4 hours and I also dont know how much that costs. But no matter how mich the cost is for those its still worth not happening to spray down with the nasty spray that make u sticky and nasty feeling and not getting completely miserable from beimg eatin alive. Now my only problem is TICKS! If anyone has a solution for them im all ears