Bests & Worsts Reviews from Amazon

I bought this trap because I suddenly had a couple of dozzen rather smallish "houseflies" appear in my kitchen. The description clearly says For Use Outdoors, but if figured: Im an old guy; I live alone; my sense of smell isn't very good; how bad can it be? Be smarter than I was. Believe the instructions. You really don't want to live with one of these things hanging in your kitchen. But I did manage to leave it up for a couple of days. Turned out, the particular type of small fly that I had was not in the least attracted to it. Not a single one. Again, the product description on Amaszon was correct. The trap is said to be intended to catch the larger sort of fly that you might find around a barn. I re-hung the trap outside, where it quickly attracted and killed a good number of larger flies that I hadn't even noticed in the area. Meanwhile, I spent $0.99 for four coils of old-fashioned "fly-ribbon" of the sort your grandfather might have used. I didn't even know you could still buy the stuff. That got rid of my indoor flys in three or four days. I think mostly because they just blundered into it. One more cautionary comment: Use good workmanship when you cut the round opening necessary to activate the trap. Work slowly. Use a sharp knife. Cut exactly ON or INSIDE the dotted line--not outside. Don't make any gash extending outside the dotted circle. It isn't immediately obvious, but if you do a sloppy job of cutting the round opening, the trap will be useless. You'll see why when you fill the trap with water. It gets fairly heavy. If the hole you cut is defective, the trap will fall apart when you try to hang it. Mine didn't--but not because I foresaw the possibility. I'm rating the trap five stars because I think it worked fine when used as intended. I considered subtracting a star because there was no warning in the instructions about care of workmanship during setup. But didn't do so because I figured that had I done a poor job of following the "cut on the dotted line" instructions, it would have been my fault, not theirs.