My grandchild's serious potty training began when he turned 3. A few weeks later he decided only the "grown-up" potty would do and started climbing up on it. I only babysit him 2 x week but didn't want risk his "falling-in"while trying that on my ADA/Comfort height toilet. I consider myself fairly handy when it comes to assembling bookshelves and other furniture but I almost returned this ladder because of the poor assembly instructions. Still, when FINALLY put together, all adjustment made, and tested , by the child, I was glad I hadn't given up. He likes having handles to go up and is proud that he doesn't "miss the bowl" when peeing. When nature requires him to sit down, the seat is apparently comfortable and doesn't give him the feeling of falling thru it. Thus the 5 stars. BUT regarding the "instructions" (drawings), the "handle inserts" are marked for R and L ( but this is not mentioned in print) and are in teeny tiny letters on the underside, easily overlooked. Also, they require a lot of pressure to get them to snap into place.. The adjustable height legs also take some figuring out (the sides of the legs with the "notches" should be on the underside, facing each other). The picture on the outside of the box that I received shows how they should NOT look. When it is ready to set up in the bathroom be prepared to experiment to see how it best fits on your particular style toilet....round or elongated , standard height or ADA/Comfort Height. Whether or not it slides around on the toilet can depend on whether it is placed directly on the bowl - or on top of the seat ( the part that men sometimes forget to put back down). You may also have to experiment with the adjustable height feature to keep the step part of the ladder from being tucked too far under the lip of the bowl. Finally, a rubber backed bath mat under the feet of the ladder seems to help in keeping it in place. So far we've had no falls r but I do worry because of his having to adjust his clothing while standing on the step. Still, it seems safer than climbing up without it. The folding feature of the ladder is very nice to have. It store easily in my small bathroom in the space between the toilet and the tub.