I wanted to get this for our cat, and initially we couldn't use it, because she was a bitty little kitten and could crawl out the hole, but now that she's bigger it works perfect! We can put her in it for travel and she feels safe and is comfortable in her little "house"! Not only is it comfortable for her, but it's comfortable for whoever's carrying it as well! My mom has also borrowed it for her yorkie and chihuahua l, and was impressed with it as well! Highly recommended!