This is the best investment we've ever made for our French Bulldogs. It is safer for them and also ourselves in the truck. We contemplated getting a cheaper one to save the money but are glad we didn't. Snoozer is well made and safe for our dogs. We bought the medium so our dogs could lay down or sit up. The seats sits high so they can see out the window. Our dogs are 20 pounds and 15 pounds. I wasn't sure if they would like it or not because they cry when they can't get in the front seat with us. I placed the car seats in the house first and they jumped right up in them to play and sleep. Then we put them in the truck and went on a 2 hour trip and they didn't cry once. They love them and love that they can see out the window without standing in a seat. You will not be disappointed at all. Thank you Snoozer.