Instruct: Classify Amazon reviews into positive or negative sentiment
Query: disappointed

I live in FL and have a mosquito problem. I bought this after reading all the positive reviews for mosquito control. I knew better, all studies show this technology is not really effective for biting insects... I tried over several nights leaving the units on for several hours around dusk. It killed a lot of insects, but only a handful of mosquitoes.Now I need to buy what I should have in the first place, a mosquito magnet or mosquito deleto.