i breed the mice and rats in my back room kinda like a back porch.. its not TOOOO bad but cleaning is def a chore... if u let it go too long u can start to notice it.. but we have a small house right now.. im building a shed 10x14 that i may move them tooo im just concerned about being able to keep shed warm enough during our winter when temps drop to 0 or below 0 UGH i need to move to warmer state lol !!