The umbrella is good and we're satisfied with it, but would have been improved with vents (like most big umbrellas) that allow breezes to escape and not push the umbrella up. Our old rectangular umbrella had them, so we just assumed this one did. The other thing is the the umbrella is not quite rectangular. Our balcony is 12 x 6, so this umbrella should have been perfect to complete cover it. However, the ends are actually rounded, so the corners get cut off and leave the corners of the balcony slightly open. Maybe more accurate to say "oval shaped". But still, we're pleased with it, makes the balcony into an extra room in summer.