I see this pack was mentioned in the lightweight packs thread.
http://www.bikepacking.net/forum/index.php/topic,1571.0.htmlI am going to 1+ what Dave said over there.
I think you could lighten a Talon 11 or 22 a bit and still maintain functionality for real bikepacking (ie gnarly singletrack). I you went the stuffsack with straps route (Zpacks, REI Flash, MLD Newt, etc) you'd give up comfort with heavy water loads, and more importantly, stability in technical situations. Even with a waist belt, I've found that packs in the later category tend to jump forward and hit the back of my helmet when rolling steep drops. No thanks.
FWIW, the Talon 11 is about 2/3s the functional size of the 22. Definitely enough for light and fast multi-days.
Unless you are really planning to go ultra light and fast I would spend $20 more and get a Talon.
I can see the advantage of these ultra lights I have found that if I do my best to limit weight I do ride better. But like with most things there is a trade off I wouldn't want to use one of these with much of a load. Think thin straps digging into your shoulders/hips for one thing. Then there's the stability issue.
As for durability I bet it's good that type of material is pretty good in a strength to weight ratio. If you are wanting to be competitive and have good to great bike handling skills this might be the pack for you. I you want a pack that will carry loads with comfort and stability maybe not.