Ive worked for some companies that have these at every desk and Ive used them for months on end. I absolutely hated these ones. Im quite shocked how expensive these are! $200-300. Unbelievable I see endless companies throwing around this kind of money on this. Most of the ones in offices look pretty much like this. Have to say theyre pretty much garbage. Dont know how anyone finds them comfortable. The hinge on the trays over time get loose and way too much give when the weight of your hands are on it. Plus if youre tall, you will get sick of your knees banging into them. I much prefer a solid desk. Nothing beats typing on a solid oak or glass desk, its the greatest pleasure. I prefer to sit closer to my monitors than the average person does. Its easier on the eyes and more personal. With keyboard trays, you distances you even further from the monitor. My biggest gripe with trays is that you cant rest your arms or elbows on your desk without leaning forward whereas with the keyboard on the desk its a natural feeling.