I have a LoChorkie (Yorkie and Long Haired Chihuahua), my daughter has her brother. Holly Poo travels with me a lot and her brother often joins us. I found it is perfect for either her alone or with her companion. It was extremely easy to set up the booster seat and folds up and out of the way if I have a human passenger, I don't even have to remove it and the passenger doesn't even feel that it is there. The babies love being in the car and being able to see every thing around them. I often fear that if an accident would occur I would not be watching the accident as much as I would be protecting them. I am very happy with the booster seat and I feel if anything happens they are both protected and I need only worry about my performance behind the wheel. My daughter, of course, is going to order one as well. I would have like grey or black, but the blue looks good too. I really like the venting, not too hot in the summer or the winter (with the heat on in the car). I found I am able to latch both dogs to the halter and makes me feel comfortable to know that they are not going anywhere. Thank you, I really appreciate the fact that I was able to find this and at such a good price as well.