This is an insanely amazing product. Although it is very expensive compared to other products on the market I fully believe that this is the best product on the market. That said, it does move when you place products on the shelves and dispense shampoo/conditioner but nothing that should affect the workmanship of this product. I love this product and all products by SimpleHuman for that matter. I would recommend this to others - P.S. if you would like more shelves/towel racks/razor holder/toothbrush holders you can order them from SimpleHuman's support site!