Is this for your use? If so, I'd offer that I have been working at a standing desk for a few years and did so in an office setting for a number of years with others who also had standing desks. Thing that I noticed in my own use and as I watched others is that the mechanisms, no matter what they are, or how they work, aren't instantaneous. That seems to mean that folks end up not using them past the first few weeks they have them. Once the novelty wears off, you put it down one day and sit and it is a long time before your natural human interia towards laziness is overcome again. I'd say 80 percent of the folks in the office who got them, stopped using them after a few months. It's an expensive thing to not use. So, what I did last year was to build a desk at a fixed standing height and to get a Humanscale leaning chair. I have found that I am standing way more now since getting to that position only requires coming out of a lean instead of a somewhat tedious process of lifting an entire desk. It seems like a small operation, the desk lifting, until you actually try to integrate it into your day. Anyway, 2 cents you didn't ask for, but there it is.