This is great!  We ordered two and it's son's room where his two bunnies live; they take up 1/2 the room but have plenty of room to play.  We did the hutch thing and access to clean was bad then the wood of the hutch absorbed their urine! Yuck! Instead this unit is sturdy and when cleaning I can remove a panel or panels at a time to sweep under my sons bed and corners or take and hose down outside. My son would not have bunnies in his room if we didn't have this product.