This was easy to put together, just set the shelf unit onto the caster unit, set the shelves into place and go. The quality is excellent. However, I was disappointed to see that it does not actually look like the photo. The and bottom have a lip that keeps you from using the space completely. The caster unit is black, which is not illustrated here. I have attached two photos. It's a great unit, and I will probably get great use of it. My complaint is that it was not represented correctly by the photos. I have seen the same photos on other sites selling these units, so I assume the manufacturer is providing these images. I spoke with Sandusky, and was told that what I have is the correct item.