Just a thought....
"Lightweight" on Amazon shows a shipping weight just shy of 12lbs. If you're just car camping it would be OK but I wouldn't want to paddle or pack it anywhere. The description mentions over and over about providing shade and the SPF factor but doesn't say anything about the seams being sealed or it being waterproof.
The couple of reviews I read said it was very difficult to put up (what freestanding fly isn't?). If you're just rigging it between two trees it shouldn't be any worse than your average large tarp. I agree that a CRL would be the way to go.
I think you'd get more bang for the buck going with a kelty Noah 12. If you've got the room you can rig it diagonal (huge sun shade, 17' diagonal) or if the weather threatens then rig it A-frame and pull down the sides.
Just my $.02