Instruct: Classify Amazon reviews into positive or negative sentiment
Query: 5 stars because my dog loves it and I don't have any problems with it

The installation is kind of confusing at first. The instruction manual is not that detailed, but it doesn't take too long to figure out how to set it up. I have a 5lb chihuahua. She was scared at first, but now she loves it. We actually put a tiny pillow inside so it's more comfortable to lie down in there (It is kind of deep. I guess this is no problem if you have a bigger dog). The leash in the back that keeps your dog from jumping seems fine to me. Just buy a collar that doesn't go around the neck (buy the ones that go around the legs and neck). This will prevent your puppy from choking if s/he tries to jump out. The length is adjustable. Hope this review helps! Always put on a collar for your dog before using the booster seat! If you don't, it will defeat the purpose of buying one.