"I am very pleased with the seats. They are nice & deep, well made & easy to attach to the car seat. Both of my dogs fell asleep in their seat within about 20 minutes. One dog used to bark when I would leave her in the car, but yesterday she didn't. I think it's because she could finally see out the window. Another thing I really like about these boosters seats is that they are collapsible. When not in use, you can put them under the car seat or in the trunk. I am completely happy with my purchase, and would recommend this product."