They feel heavy duty and super easy to maintain and clean.  As someone with three kids, this is exactly what I was looking for.  I ordered 6 chairs total and kept all but one.  One of the chairs had legs that were two different sizes so it would have rocked but Wayfair shipped me a new one right away and the new one is fine.  I do have to keep the allen wrench handy and tighten up the screws every now and again but I'm okay with that given the price and durability.