I bought this for my 2 cats, there are plenty of room that is a good thing! But, this carrier is big and bulky, hard to carry when your pets are in it, and wait until you try to get it through the door in your house even, it barely fits through the door! I scraped the inside of my car just trying to fit this in my backseat, I have a 2015 ford Taurus, which is a very big roomy car, but this i had the hardest time getting it in my back seat because it is so big! It took everything i had just to push it into my backseat! I just bought 2 separate carriers for my cats, they are smaller and should be much easier to carry! Pros... there's plenty of room! Cons... Big and bulky, and very hard to carry when you are walking with it in your hand!