Others say...

"Legs welded incorrectly"
Unfortunately I do not recommend this keyboard bench. In the as-arrived condition, one of the legs was severely bent and it was impossible to place or play anything on it due to the rocking problem. I examined the bent leg and made the following observations. The leg was bent due to heat distortion from incorrect welding (it was not a shipping and handling damage). What is disturbing is "lack of quality control inspection" which should have detected this obvious problem. But, there is another problem here. The leg was bent during the welding operation, and the part was painted afterwards. This means, there are no "in-process controls" in place for the manufacture of this item. Clearly, the item was built overseas where manufacturers do not place emphasis on "quality control and inspection". They built an oviously defective part that would not work for the intended purpose and shipped it over to an "unsuspecting" merchant. However, I did not return the item because I do not want to be a nuisance customer to Amazon, where I always get good products at good prices. Here is how I fixed the rocking problem. I wrapped an old electrical cord around the tip of the bent leg to sufficient size to prevent rocking. Then I placed a nylon sock over to conceal the cable. With a black twisty, I affixed the nylon sock to the leg firmly. Well, it sort of looks cute. And it does not rock anymore.

"Perfect for my Casio Privia PX 555 R"
I'm petite so I'm delighted that this stool has 6 options for height adjustment. I was able to get it high enough for me. The padding is soft and comfortable to sit on. It's light enough to carry around. I also like it that it can be folded away for storage if I ever need to. It is also stable enough, though I wouldn't recommend rocking on it or standing on it.

"good quality"
the bench is comfortable, easy to set up from a flat folded position. It also feels sturdy. It ships for free, which brings it down to the same price as a cheaper model that did not look as solid to me.