I have a medium sized breed hunting dog that definitely gets his energy out when he goes to this facility. I typically let him stay the night and he comes home very tired, and less destructive. I know there have been some negative reviews, but you have to know your dog type, breed and personality to make sure it's a good fit for your dog to be left in an "unleashed" environment. Luckily for us, it's a great match and he loves his time there.