This type of trap is my personal favorite and I've used 4 different types. It definitely catches the critters if set up according to instructions. If I don't catch anything in about 2 weeks or so, and I see activity, I pull it out and use something sharp to gently remove any rain-impacted dirt from the sensitive activation spot, then re-bury it. The only problem I have with it is how hard it is to set. I can't use the set tools for some reason, so I have to step on it to set it. This works but it's still very difficult. Well I suppose it's worth it reducing the number of mounds and tunnels through my yard. They really do tear it up.