Thanks for the review. I use the Patagonia Atom sling and love it. The only annoying thing about the Atom for me is the strap/buckle around your waist. When I want to pull it around to my front, I have to unbuckle it each time. I can deal with it but it does get annoying.
It appears this Vedavoo has no buckles and the sling just slings around back to front seamlessly. I like that.
What I didn't notice and to me, is probably the single most important aspect of a sling is: A pouch to carry water.
The Patagonia has one and is invaluable. I can carry a 2 liter bottle of water in the sling for an all day trip.
You can see the water pouch here in this image.
Patagonia Stealth Atom Sling Pack for Fly Fishing
Does the Vedavoo allow a slot/pouch to carry a water bottle?