Ok, so we set up the bag as directed, and checked the directions twice. (we always do). Waited the 2-4 days, figured something was wrong, but we waited for another 3 days, making it a full week. There is not one fly in the darn thing, but our backyard is certainly full of them. We dumped it this morning, and threw it out. That was a wasted $12.00! I won't buy it again for sure. Not sure I will buy anything else by this company. read full review »