Very easy to assemble, managed to 80% myself. As we were restricted to 2.5 meters in width the only Pergola I could find was the Shadow pergola. Just a shame that there is no option to purchase sun blinds on the two 3M long sides, doesn't make sense that you don't have a standard sun blind that would fit all your 3M pergolas. Looks great in the garden and overall we are very happy with it. One other thing that I noticed is that I have extra plastic holders for the louveres, I assume that this may be a weak point of the design and I will have to replace in the future as the holder are exposed to the elements.