I bought stand for my Roland A-88 Midi keyboard and I was disappointed.
The stand was too high for me on it's lowest setting.
When I sat down to play the keyboard my posture was wrong. I had to lift my shoulders up, but I tried to fix it by adjusting the seat higher. That didn't help either because, I couldn't find a comfortable position, as when I would play normal piano.
I can't complain about the quality of the product in sense of quality and sturdiness, this one is probably better for a person, who would like to stand and play.
Me, personally I didn't like the product and I had to send it back to Thomann.