Worth every penny. Has kept my niece and nephew safe when they were in an infant seat. Just be sure you are inserting it correctly. It is ok if you don't know how to, be honest with yourself, take this to your local fire station and a firefighter will help you insert it properly. Do not reuse after an accident. It is best not to buy used since you don't know it's history. Plus let's be honest, it could have another child's urine on it.