I originally gave this item a one-star review because I was very upset that one of the screws was stripped and I was unable to remove it to reverse the top shelf, which rendered it useless to me. Naturally, I was very unhappy about that. But Wayfair has since shipped out a brand new bottom tray that was easy to switch sides and works perfectly, and I'm super-happy with the shelf now! It was very heavy, stable, and sturdy, and it holds a generous amount of under-sink supplies, allowing me to capture and use ALL of the available space under my sink, without worry about things being forgotten, lost, or knocked over. It is just what I needed! Thank you, Wayfair, for a great product and equally great customer service (as always)! :)