Max approves! Replaced a wire kennel with this size large kennel for my rat terrier Max. He has anxiety issues and likes to hang out in the protection of his kennel. I keep the door and windowd open during day and will zip door closed at night. I chose large size so he will have lots of room when i leave for short periods of time. Will keep him seperate from the other dogs. He got in it right away with all his fuzzy blankets.