I have purchased a few of these sun shades from different vendors. This one has decent quality compared to others and feels like it is made with robust seams and heavy material.
It gets three stars since there is an ugly seam across the center (about 1/3 into the middle from one of the corners). This seam is not pictured in any of the product photos and not mentioned in the description as a possibility. The seam is not discrete and really hurts the aesthetics for me. It has the appearance of a dark stripe during the middle of the day when the sun is shining through.
Note that this is my second purchase with this same issue. The first time around, I contacted the seller and returned it since they indicated the seam shouldn't be there. The second shade sail had the identical issue and I decided to keep it since they offered a discount. Good customer service, but they really need to fix their manufacturing process to avoid this on an otherwise great product.