Catches 100% of the flies in the immediate area. Ours caught 100's of flies. It does stink very bad. That's the attractant. So that's why it should be used outdoor only.

the smell is awful. i purchased this for pur garage that is directly outside our kitchen. after 4 days, we had to take it down because it smelled so bad. it did have several dead flies in it when we disposed of it.

Lasted maybe 2 to 3 weeks I believe. (living in desert/ strong sun and heat.) Needed to get rid of flies coming from next door neighbor backyard and really worked. Definitely will buy again.

It seems we had more flies than usual this season and we are spending a lot more time in our own backyard. I put one bag up and it is amazing how it attracts and catches flying insects! The only minus is that it has a bit of a icky smell

These traps work great but make sure you place them as far away from your home as possible as they do have a horrible smell which is necessary to attract the Flies.

Works like a charm. The best fly trap I've ever come a crossed. I highly recommend to those that like to hang outside with the family. Easy to dispose too.

I was astonished by how many flies this thing caught and killed! Simple to use. The only thing I don't really care for is the odor of death that it emanates after a couple of days of trapping flies

these things are amazing. i have zero flys in my yard. and probably the neighbors dont either. it does stink to the high heavens. you dont have to place it near your sitting or activity areas.

Was a little skeptical but for under 6 bucks, gave a it a try. It says it works in about 2 hours but surprisingly it started to work about 20 mins in. Made my bbq more enjoyable l.

This works great. Beware hang it a bits a way from your home this stuff smells terrible. Other than that it works better than anything else I have tried. Catches flies as soon as you hang up.