We are very pleased with the material and included hardware. The shipment arrived in about three weeks. 
My installation was quite unorthodox in as much as I wanted to integrate it into our deck. In doing so I needed to raise the structure high enough to  allow access to our sliding door by 16”. 
I paired down the 5 12” X 5 12” deck support posts to equal 3” X 3”. I then was able slide the pergola corner posts overtop of them  16” above the floor of the deck. I also added two more support posts to the deck to accommodate the 12’ width of the pergola. Subsequently the posts were lagged into the 3X3’s using Timber-Lock lag bolts. (Photos to follow)