We use this seat as a pop into different cars seat and as a extra seat in our own car for friends kids. It is a lovely light and easy to adjust seat that fits well to any child as there is a little head adjuster that regulates the seat belt so the child does not get the belt straight into his/hers ear. I would not feel comfortable with a 9 month old in the seat I feel it is better used for a slightly older child but for a child off around 1 to 1 1/2 I would reccommend it highly. It has a easy come of cover and as it is light it is easy to travel with. My child seems comfortable in the seat, as does 3 other children that I on a regular basic drive around. Only drawback is some children find the seat belt easy to get their arms out of but that is quickly curbed by a firm hand from you about not budging a inch until they are sitting properly strapped in. All in all a good versitile and nice looking seat