The product is overall not too bad. The instructions were basically non-existent. It had to be built using pictures as there were no step-by-step instructions. I did have some issues with bolts not inserted correctly due to bad female threads. The petwo bed on top broke during installation, but I didn't really need it.  We feed our cat on the top platform, so the more surface area the better. We rearranged the sisal posts and eliminated the ball box on the bottom to make it work better for us. One issue on the top is the bolts are flush, not countersunk. This is no big deal in the grand scheme of the product.  The sisal rope is not the thicker style I am use to, but the cat still uses it. I feel it won't last as long as ones we have had in the past since it is the thinner rope.  Overall, it does what we want it to, so there is that.