I purchase two riddex plus and my roach problem have decrease considereably. It hasn't eliminated roaches totally.
I might see one every now and then
which is new hatch because of size. I'm going to return one back one cover square ft. area 2000. However, it doesn't state that information when you purchase it.
I'm not sure why it helps some and not others that is strange.
I'm one of thode who reads reviews before purchase but I didn't see this website when I purchase this product. It might have made me not purchase.