Can't get much better...
Couldn't decide between the 46L or the 58L. I tried both the 46L and 58L in both medium and large. I purchased the 46 in medium despite the hip belt almost being too short. I later returned the 46L and got the 58L instead. The hip belt fits better (despite what people say, I think they are slightly different). I figured that for about the same weight, I could have a much larger capacity, less compression of bag, etc. Awesome construction. Lot's of neat little features. Probably the lightest option for something this large of a capacity...Osprey Rules!