Ibex and Icebreaker (check out their Roto) have a 2% lycra content in their wool jerseys. This one has 25% polyester content. I did not realize this but always wondered why this jersey stunk like BO just like a synthetic where all of my other wool baselayers and jerseys could be worn for days on end. Now I know.
So the Betasso looks good. It works and feels like wool, but if it stinks like synthetic what really is the point?
Oh, the one giant pocket is no good either. I like the zip and the idea (it is roomy for a pocket), but due to the size if you do end up putting a bunch of items in it they tend to settle in one part which pulls the jersey in that direction. I still believe the customary jersey 3 pocket design works best as it's easily accessible and stuff stays in. If it ain't broke don't fix it.