While self assembly of this was doable, it was very time consuming and fiddly. Some of the pieces were difficult to put together, and I found myself really needing a cordless drill to complete the project. I do really like the final product, though, and find it generally sturdy, though not sturdy enough to sit on.

UPDATE After using this cover for two weeks I need to get rid of it. My cats are just too big for this to work for them, and they keep missing the box, causing urine to pool under the box and leak out of the cabinet. It has been a disgusting nightmare. I intend to just go back to a jumbo covered litter box... This might work for a smaller kitty but its no good for larger Toms.