We couldn't be happier!
We just installed the 13ft version of this umbrella and we couldn't be happier! It is easy to assemble and easy to operate. We use seven bags of 80-pound Quik-Crete ground anchors, which are very sturdy and stable. Opening and closing operations are smooth and easy. We installed it on a very large fire pit, and if we angle it up a lot, the heat of the fire pit doesn't affect it at all because the fabric is about 12 feet above the fire pit to allow the heat to escape. However, I don't recommend putting it above the flame. If I put my hand 7 feet above the flame, it gets very hot very quickly.