While assembly was a major pain, we are very happy with our purchase. We placed it on a concrete slab and used concrete screws to lock it in place. It has held up very well in extreme weather and the rain sounds great hitting the metal roof. It took us a weekend to set up.  Made sure you dedicate time and have 2 good helpers to put this up and don’t tighten anything fully until the end. Or only complaint is that it is no pre-wired or include a light kit.   Great, purchase and way better that a Pergula.