I currently have a 24" and 27" monitor on mine. I threw the stands that came with the monitors away years ago. I recently moved, and had to leave the wall mounts. I was going to buy new wall mounts, but thought I'd give something like this a try. I was hesitant at first as I have a glass desktop, but it holds up fine. Probably not the most brilliant to use with a glass desk, but I've not had any issues. You have to be sure to adjust the stiffness of the equipment with the equipment provided. After some quick calibration I was able to set my monitors at any height or angle I desired.This thing is great. I'm thinking of buying another, and may recommend using them where I work as most use dual monitors.