This product has been passed down through my family and I have to say now that I have it, it is a wonderful product. it holds my child upright and has a five point harness for security. The padding is starting to show its age but other than that its been a great product to pass down in the family and save. Sturdiness This product is very sturdy for the years my family has had it. it has gone through three nephews and now my son. though out the years we have made sure that it is keeping up on the way it handles the child, how long they use it, and where we store it for the next member of the family. Durability The durability is alright. again after having a few children in it over the years its showing its wear, but other than the wheels locking now and again I have no other complaints. Design This design gets the job done, it keeps my son in the seat, has a wonderful removable tray for easier clean up, and can fold away for more space in a tight room. Safety Safety is what matters the most to me when buying a product, this product has held up the tasks of time over the years. the straps and locking piece still work, the wheels still lock for times when you don't need to move it, and the back is high so if he was not strapped in he could not get out. Ease of Cleaning The ease of cleaning this product is the best. detachable tray, ease of removing the padding to be washed, the only thing that gets me sometimes is the straps but other than that its wonderful.