These are great! Sturdy material and provides great shade without blocking everything out. Fairly easy to set up, I drilled holes and screwed in hooks into my patio cover and then anchored the bottom to the ground. A strong breeze will yank up the ground stake (I put a large rock over the end to prevent that). I have the 12 foot and 18 foot shade sail, I think they look really nice without sticking out like a sore thumb in my backyard.