Finally, no more kneeling for adjustments. The manual requires technical understanding, but fortunately the picture is reasonably clear. The stand can be adjusted to height well for my slight height of 1.95m. And it stands with bike reasonably stable, as it is slightly forward. The clamp works, for me, just a bit easier if I place it horizontally, but then it doesn't fit so well. At the seatpost, it's no problem.
I am extremely disappointed with how the stand comes in the box. Completely disassembled. You should at least expect that the legs would have been secured to the upright via the connectors. The manual is a little book where you can't figure out what is what. Really bad this ! Finally received a pdf by email via Trivio so I could zoom in on the images. Finally after hours I managed to put the stand together. But I would not recommend this to anyone else.