I visited the Biltmore Mansion in North Carolina this summer and in thier chicken coop I saw these boxes. I figured if they were good enough for millionair chickens they were good enough for me. Would have given a 5 star but they forgot to drill 10 holes in the top that hang the rear plastic panels and assembly was not that easy. With all that said if your handy at putting together things like this go for it I feel they are probably the best system on the market.