We bought this game for Christmas. I wanted the wooden balls and a sturdy cage. The first unit that was shipped to us had a defective cage. I called the maker of the game instead of returning to amazon, because I wanted them to know about the quality error for such a high priced set. They shipped out a new cage very quickly at no charge. Our balls were well marked (two of the markings my 8 yr old had to look at twice, but were still readable). We would have liked a few mor cards in the set. I would say they are the weakest part of the set. The sliders do not easily move and there is no way to order additional cards and be sure there will not be a duplicate.Overall, we are happy with the set.