I got two of these to put on my deck. The deck is west facing and gets extremely hot (130 degrees) in the afternoons in summer so it is often unusable. The pergola matches my deck railings and is light weight so I don’t have to worry about the added weight. I bolted the posts through the deck to secured wood blocking. We also get wind gusts up to 65 mph  so the ability to retract the shade is important. The shade provided by the pergolas allow us to sit outside in the afternoon and eat or enjoy the kiddie pool on the deck. The only issue I’ve had is one of the caps blowing off