You ideally need two people to put this bad boy together as the top part is very heavy, but otherwise it was pretty easy to assemble. It's sturdy, solid, and holds a surprising amount of weight in the "standing" position. 3 stars because it's not super ergonomic. I'm 5'6" and it's not possible for my elbows to be at right angles and have my legs fit under the desk at the same time - either my hands/arms are in the right position and my knees hit the side of the desk or my legs fit under the desk but my hands/arms are angled upward and slightly uncomfortable. The "standing" position is too short to be just right and you also can't access the inside of the desk in the "sitting" position. So basically I'm using this "adjustable height desk" as a regular desk with storage that's kind of hard to get to...but it's sturdy and better than nothing!