Based on the low qualtiy of their marketing photo, I'm staying away from Grand Trunk Tarp!! I mean, really.... Who displays their tarp loose and wrinkled? Paying so little attention to image of the product, gives me the impression that their mfg. process or controls are lacking as well. And at that price, you can get a 12x12 *****.
Nice light weight tarp for all needs. Not ultra light tarp. Quality is good, but a bit pricey for what your getting. There are other silNylon tarps that are lighter, and closely priced. The seams are sealed very well, almost looking bonded through most of the tarp. Again, as I reviewed their Skeeter Beeter Pro, this is for camping. This would have gotten an excellent rating if not for the price. Although reasonable, it is just a tad high for the tech. I will say that Grand Trunks customer service is excellent, and I would recommend this based on that alone, as the product is very good and the price not horrid. When questioning some stitching and seam sealing customer service sent out replacements immediately.
We have not had the chance to test the item in the rain but I was impressed by the extra tabs on the top of the tarp that allow more support to a continuoyus ridgeline above the tarp or in my son's case, he flips the tarp upside down and enjoys having the extra taps facing below his tarp. It is a generous sized tarp allowing for good coverage. The ridgeline is not included. Guy lines and stakes and a stuff sack come with the tarp. No instructions but Derek Hansen put out a nice YouTube video for ideas on hanging. The grommets were small and the carabiners we used had to be clipped inside the tab loops instead but it worked out fine.