I'm 5 ft tall and I can use it at the lowest seat setting. It is a reach for my toe to reach the lever to move the desk into position or away. It is very stable and took us (2 people) about and hour to assemble. I do use it with a large laptop so the cup holder is not accessible. I'm using it just to move more so I'm not really working out on it. In an hour I can pedal about 9 miles while working on the laptop. Happy with it so far - 3 days of use.