The assembly takes two people.  We elected to have a concrete slab poured with a small driveway access to the shed.  If you choose a slab, we used a finished dimension of 9 x 16 feet to have clearance all around the shed.  The two window have a plexiglass panel that can be opened. We have all our yard equipment stored in this shed.  The shed even survived the intense Texas rain in our area without so much as a drop rain inside.

Pros: Good design and functionality.
Cons: None