Haven't used it yet but I am pleased with my purchase.I put it in the washing machine a couple of times already.I like how tough and durable tyvek is.It will protect my tent on the different trails I do down the road.It is a little heavier than some other materials but is a lot tougher also.Worth the weight penalty to me.
Actually, this purchase goes in the bits kit for future use. Have the same product was purchased three (3) years ago and well over two hundred nights in the field. At some point the product "shelf" life will expire. Therefore the purchase is a back-up. I enjoy this product as it is pre-cut nicely. size is excellent for my Hilleberg Enan and it's plan white on both sides.
I just used my Tyvek Footprint over 3 nights on dirt and granite in the high sierra. It did the job of protecting my tent with flying colors. And it's super light! I highly recommend.