Instruct: Classify an Amazon review as either positive or negative.
Query: Either this doesnt work or the rats are too smart for this..

Bottom line for a product like this is fairly easy.. Either it does the job its designed to or not.. Well in this case, i couldnt catch even one mouse.. I ordered two of these.. First of all, its really really small.. i don't think big rats will even fit into the trap.. Mostly for small ones.. When I have set it up, the following day the cheese is gone,, but i see no sign of a mouse or even its whiskers..What a waste of money.. And whats more, the shipping is kind of more expensive than the trap in itself.. I wont recommend.