After 2 weeks, I am disappointed to say this seems to do very little to attract common flies where I live. It does however, seem to be effective in killing them if I add smelly fly attractant to it. I'm using in multilple bait stations (dry), and in open containers with water and supplemental attractant. I've had more success with the disposable fly bags.
I've never had a problem with buying anything from this website, but this product, which contains some dust anyway, came containing almost completely dust with very few pellets. This would be perfect if I were to make paint, but I needed to scatter the pellets. Ineffective, especially with mild wind