The first thing that struck me about the keyboard stand when it arrived is that it wasn't Technote branded. Mine is branded as a Meridian Stage Pro. Seems to be exactly the same product though. What you get is the stand in a plastic bag in a cardboard box. The plastic bag seems a little unnecessary and there is nothing in the way of paperwork such as instructions, warranty etc. I would have expected a safety notice or something just so you know what kind of load it can bear.
The height adjustment seems quite well thought out. Two crown gears (I don't know what else to call them) are meshed together when you close a handle, and when you open the handle they come apart and the frame can be adjusted. Thus you can get a good variety of heights. How robust the plastic handle mechanism will turn out to be with repeated use I couldn't say.
Your keyboard just sits loosely on the top (the only difference between top and bottom being it is deeper at the bottom for more stability - you could quite easily use it upside down if the need arose) and all that holds it in place is the friction provided by four plastic grips (which act as feet on the floor). This is where I feel the stand is lacking. The stand is deeper than my keyboard and so only two of the grips come into play. I think they could have been a bit more generous with the size of the grips and made them pretty much full depth. That would have provided a bit more friction.