The engineering is excellent, and instructions are we well presented. Obviously some field experience is a plus to put the puzzle together.  The sockets in a few #1 screws were obstructed which rendered them unusable. However the extra bolts made up for it. Also out of the hundreds of pre-drilled holes, only one was missing, which was easy for me to drill   All in all a great experience and a nice addition to our back yard. I did not give 5 stars for two reasons
One: the price is rather high, about $ 650 more then an equivalent gazebo I later found. 
Two: because we just installed our gazebo We can’t comment on its performance during winter and other weather related adversities.