Instruct: Classify a given Amazon review as either positive or negative.
Query: Its been working for us

We have a huge mosquito problem in our area so I was hoping to get on top of the mosquito problem with this trap. The idea is that the mosquitos lay their eggs in the trap, the soap kills the larvae, and the population is kept in check.I used water that had been sitting for a while, filled the trap, added soap and waited. After about 3 weeks, I checked the trap and there were dead mosquitos. There was some swimming larvae so I added another drop of soap. Our population of mosquitos does seem to be lower so hopefully, this is working. I plan to order another trap and replacement lures in the very near future.