Exactly what I needed to work at my three monitor desk. I have two 24" monitors, landscape side by side, and another smaller one that sits off to the side on the desk that I use only occasionally. This setup was killing my neck when I would turn my head to look at one monitor while typing as I often bounce back and forth between both monitors. My chiro suggested I put a sticky note on the top of one of the larger monitors reminding me to 'Turn Your Chair', however, that wouldn't solve the issue of keyboard placement (which used to sit on an undermount keyboard tray). He also suggested I try a different monitor setup, such as stacking them landscape, which I did, but this wasn't working for me either as I would have to look up too far (also straining my neck).I looked into other possible solutions, but when you realize you need the keyboard to pivot along with the turning of the chair, a chair mounted keyboard stand is really the only solution.So, after doing some research, I took a chance and bought this keyboard and mouse tray, despite the up and down reviews. I installed on my desk chair in about 20 minutes total, and it was pretty easy (eliciting my husband to help with the screws didn't hurt either). Since I wanted the tray to move along with my chair rotation, I mounted it to the smaller tube. The height of the chair is where I want it, but if you move your seat up and down a lot, you'll probably have to mount on the larger, outer tube because you lose that functionality when mounting on the smaller tube.It's very sturdy, even when typing...no bouncing at all, and the mouse pad is quite comfortable to use. I have no trouble putting my feet up on the footrest of my chair without hitting the tray, but I could see this potentially being an issue for others. I can also move my chair close to the desk and allow the keyboard tray to fit under it.Very, very pleased with this purchase!! My neck and back are happy again.