I love this booster seat! It is meant to be portable and folds up nice and small which makes transporting this seat so easy. A good friend bought one to send to the baby sitter for her son. I saw it and bought one immediately. I love to take it to restaurants. I don't have to use the disgusting and germy high chairs that most restaurants have available. I just take this one with me. It is fairly easy to attach to the chair and my son straps in easily. This chair can be used with fairly young children. My son is now sitting up and he can use it with supervision. My friend has an 18 month old and he can still use the chair. This is also nice to take along when visiting. Sturdiness This is by no means the same as a wooden or hard plastic booster seat. I would never leave a child completely unattended in this chair, but it is very safe. The seat straps around a dinner table chair. This seat does not have sides to it, but there is a harness that straps around your child. Durability This seat has straps that and plastic clips that will certainly wear out with time, but with care, the seat will last for a long time. You can also wipe the seat clean after each use. Design This seat is definitely meant to be a portable seat. I think it is sheer genius. Safety I would never leave a child unattended in this chair. However, the harness keeps the child nice and snug and with supervision this chair is perfectly safe. Ease of Cleaning The straps can be a bit of a hassle to clean because there are so many. I wipe the seat down after each use and that keeps the seat nice and clean. The seat and harness wipe down nicely.