The Ergotron Workfit is capable of tackling the day-to-day needs of almost any office. It has an 18″ range of adjustment. The LD model can lift up to 18 lbs, and HD models can lift 25 lbs. The keyboard tray drops to below your desk’s surface, so you can type in whatever position feels most comfortable. Most importantly, the monitor can be adjusted independently of the rest of the riser. This allows you to set your typing and viewing heights to the most ergonomically ideal positions. The sit-stand motion is aided by a tension control system. When it is adjusted properly it moves smoothly, but stays where you want it. If you do have to fine-tune it, Ergotron recommends using a drill, which might be a bother for some users; however, the tension setting was more or less ideal right out of the box, and few users have reported any issue.