Excellent product.  Assembles easily with three people.  Here are some suggestions::

1 top cap is heavy.  Install three rafters to the front, lift the rear (2 people) install the rear three rafters and set it on the wall panels, then add the other rafters.  Leave all rafters loose on the top cap to allow easier top panel installation.  Tighten after all panels are in place.

2 doors should be mounted on the outside.  The door windows (UV protected) and the lower panels will be backwards.  Six screws will undo door frame (1side) to turn windows and panels around.  After assembling the door frame reverse it too.

3 Rr and Qq square panels should be reversed in order to line up drain fixtures. Install Rr top and Qq bottom.

Have fun, you'll love it when you're done.