Purchased this desk for the sole reason it was a stand up desk that you could adjust up and down. I purchased the 60" desk because I use two 32" monitors and needed the space. Put it together easy enough and the frame is metal and solid. The ends are connected by a hexagon shaped rod so that you only have the "crank" one end and the other will adjust with it, keeping it level. Well, the rod system doesn't work at all as you need to crank both ends a few inches at a time and use a level to make sure the surface stays level. I have it adjusted in it's raised position and I leave it there so I don't have to mess with the level. My co-worker bought the same desk at the same time and had the same results that I did. The system will need to be re-engineered in order to make both ends adjust at the same time - at least on the 60". Not sure about he smaller models.