Mostly, assembly was easy, and I'm a 71-year-old woman.  The one wrinkle to the assembly was that the wall tabs would not slide into the preformed holes in the floor and lock into place until I slid the shed floor off the edge of the support a little bit. Had to do that for all 4 sides.  Once I figured that out, the walls went really easy.  Borrowed a neighbor to help with the roof, as putting on the roof is not a 1-person job.    Now that it is finished, I really am happy with this little shed.