We crate trained the last two dogs we got (Greta was crate trained as a pup) and Spencer is still a puppy but now a rather LARGE one. I put a cover around the sides to give it a more "cave like" look and Spencer still sleeps in it at night. He's housebroken and has been for many months now, but he still loves his bedroom. His beef is when he wants to go to bed and there's cats sleeping in it! He just clambors in over them and flops down. They get the hint and leave! Spencers cage looks identical to the one you have for Elvis.