Anthro builds great stuff. I had something similar to the Adjusta Unit in the second link. It was very sturdy and high quality. The adjustable mechanism worked

Anthro builds great stuff. I had something similar to the Adjusta Unit in the second link. It was very sturdy and high quality. The adjustable mechanism worked flawlessly. The only problem was the that the unit I purchased was designed to fit in a corner and was HUGE. It would take up far too much space in my current office.