I spent a couple hours trying to pick the best one of these folding-leg stands before selecting this one. Now I have it so I want to help other buyers make an informed decision.My need was for a stand to hold my keyboard and trackpad while standing in front of a screen raised up on a pneumatic arm. My five-star rating is for my use and I note where people with other needs might have a different experience.* The platform is metal, sturdy, attractive. I prefer the holes to the fans that some other trays have because I don't have a laptop on it. The platform can be used with either side 'up' and the depth of the lip is a little different on each side which is good for different kinds of uses. (I use the side which most people would probably call the 'bottom', according to the illustrations on the web page.)* The legs are the exact same plastic legs found on many other models from other brands. Each joint swivels all the way around and locks tightly in place. I can imagine them being a bit annoying for people who want to change the angles frequently but my use does not require me to do that; I just set it and forget it, so I didn't mark the rating down for that.* I can imagine a person who puts a laptop on this might be annoyed by the screen jiggling during typing, although my guess is that this model is no more or less jiggly than any other. In any case the jiggling is not a problem in my setup so I did not mark down the rating for this.* I specifically chose this model because…