I love this shade! It was very easy to install, and the materials allow water to drip through, to avoid pooling and sagging. This was a big benefit. I live North of Seattle, so we get consistent rainy days.
I put it up as a sun shade for my bee hives and it works like a champ.  It still allows sunlight to filter through but protects the hives from the blasting, afternoon heat.  Also, there was a couple of minor wind storms, and I found the material and grommets sturdy enough to withstand.  This is a 3-season shade that I would highly recommend.