Package says it take a few hours to start working but we saw it start working within minutes! We have a huge fly problem and these are amazing!

These works amazingly well. Flies love it and within a week it's full. 4 stars because it does not come with string.

I could not believe what I saw in just FEW HOURS flies WERE KNOCKING EACH OTHER OUT OF THE WAY TRYING TO GET INTO THE TRAP !!!!

We have a big problem with flys. I hung this on my fence. It totally filled up in two weeks.. I always keep one on hand.

Very effective at attracting and killing flies but keep it as far away as possible. IT SMELLS LIKE DEATH !!!

Although it stinks (that's why I keep it far from any entrances) it collects 100's of flies and other insects!

these traps really help reduce the amount of does that enter my home. Only bad thing is they smell awful but they do work.

[This review was collected as part of a promotion.] I DID NOT GET MY ORDER, so I am not able to rate any of the products

I don't hang it near where you sit because it does have a unpleasant smell. It definitely attracts flies. Well worth buying.

Amazing. I think this fly trap has caught all the flies for my entire cul-de-sac. After 3 days it's almost full!!! So gross but effective!