The design of the shed is what sold us!  Upon delivery of the shed, we began losing our excitement.  The instruction manual required someone with architectural rendering experience to understand some of the instructions.  Not easy for a semi-pro to figure it out.  The majority of the wood was not marked, so each piece of wood had to be measured and marked to insure the shed would be square.  Some of the 2 x4's had massive curves or were split, so adjustments had to be made to insure solid construction.  Wood quality seemed like C grade.  You don't used particle board to join trusses - not sound.  Did not supply silicone caulk for the window placement.  We chose to build the shed on a cement slab.