I received my pack on Tuesday and took it out yesterday.
Initial thoughts. The thong retention strap is sexy. Makes you feel special on the way down. The pack itself seems to be burly enough and well designed. I got the 30 liter pack. Two gripes. 1. It should be a 30 liter pack after the airbag is added to it, not before. A big chunk of space is gone before you even load it. I may have to order the 45 liter bag at some point.
2. The other shoulder strap should be set up to run a hydration hose through it to keep it from freezing. You have a bladder pocket and a hose hole that leads to the outside of the pack. Yeah, instant freeze. I'd be willing to pay an extra $50 for this feature.
Otherwise, it's a pretty sweet bag. I plan on deploying the airbag next week. One I find a place that will recharge the canister. The system itself does not add much weight to the bag. I was surprised at how little the weighed with just the RAS system in it.