Light duty but very effective and inexpensive trap for chipmonks (3 or 4) and mice (about 8) SO FAR. I've now driven a fair few miles for my "rodent relocation" program. I've also caught two squirrels unfortunately, which tend to beat up the trigger mechanism a bit. I don't relocate the squirrels but just open the door and let them rocket away. I will straighten out the trigger bits again, but also buy a 2nd knowing this can't last forever. I rinse with ammonia and dish soap between captures to eliminate the smell of stressed animals (I assume that exists). I bait with almond halves and stick one to the trigger plate with a little peanut butter. And I put a few around near the trap because I figure it might help the little guys want to go into this contraption for a known food. I've only found it sprung and empty a few times. Check daily to avoid being accidentally cruel.
If you want to trap animals larger than chipmonks, I don't think this trap is the best choice. That why I only give it only 4 stars - I disagree with the advertising.