Bests & Worsts Reviews from Amazon

I'm not sure if this product is legit in terms of the correct original formula, but I've purchased some from Amazon around a year ago and I remember it working. This time around when we got hit by more German roaches, it seemed to only feed them and not kill them. I'm not kidding, these roaches would see the poison and run up to me eager to get their tummies filled. They'd lick the walls clean, but seem to not be affected by the poison. I experimented by trapping a roach in a box with poison, I checked on it 6 days later and the roach was still alive and the poison had been licked clean.