Roman lists the Shangri-La 1 as 18 oz, vs. 21 oz in the above list. I'd be very curious to find out the weight of the shelter alone, no stakes, no stuffsack. Roman's listed height also suggests one can sit up in it. Imagine a 4-season shelter you can sit up in and requires no bivy for 18 oz!
I was pleasantly surprised to find that my Hex 3, with no stuff sack, stakes, or poles weights only 25.3 oz. If the Shangri-La 1 is truly 21 oz for bare-bones, I'd rather keep my Hex 3! but if the Shangri-La performs like the Hex 3 in the wind, and weights 18oz, it's a no-brainer for my solo 3-season camping above timberline.