I know this impression is severely late coming, and it'll probably be smaller than what the pack deserves, but here we go, and just for comparison's sake, I'm about 5'11 at a fairly athletic 155lbs.
The pack itself is incredibly burly. There are no zippers, instead relying on button snaps, and the frame itself is incredibly stout. I haven't weighed the frame separately from the bag, but it's easily twice as stout as my Kelty Trekker 65. Though I haven't tried one, I have to imagine it's heft is up there with some hunting packs. The frame is rock solid.
The pack also doesn't have load lifters. It's probably not an issue if you carry lighter loads, but I found that upwards around 30lbs, the pack was pulling back too heavily without them. I can't imagine wanting to push more than 35lbs for sustained periods of time, even if the frame itself could definitely withstand it. And the belt is fairly minimally padded, but it hugged well, and despite having hesitations of its effectiveness, I actually didn't mind it at all.
The fabrics sort of speak for themselves. The body is built out of 420D Cordura, and can't imagine ever having any issues with it. Probably way tougher than what most would need, but for someone like a Boy Scout, its a nice inclusion.
So far, I've gotten about 15ish miles on the pack, with ten of those at around 20lbs, and 5 of those miles at 30lbs. If you simply swap a 15lb total weight in gear/food from an UL pack to this one, it feels amazing. I don't even mind the extra weight. The luxury of ease in strapping whatever you like to it is simply too convenient. Want a full length Ridgerest? No problem. Want to lash a bear can with absolutely worries? No problem, and at around a 20lb total weight, you have little to no weight resting on your shoulders. I could jump up and down, even, and feel nothing on my shoulders. But at 30lbs, the discomfort settles in a little bit more. The backward pull of the pack (although it could be halfway corrected with more thoughtful packing) caused slight bruising on my shoulders, although I should mention that I have very, very little upper body strength. Someone with a bit more muscle probably wouldn't find it as unpleasant.
Would I recommend this pack? I would, with some concessions. If money wasn't an issue, and the durability isn't as valued, a Vargo Ti Arc is probably the better pack. It shaves about 2lbs off the Hatcher, but if your a bit more frugal, like myself, and you need the extra durability, be it for children, or whatever, I feel like it's worth considering. I'll probably use mine often. There's definitely a dorky factor when strolling up a trail with a bright blue external frame pack, but I'm a function over form guy when it comes to my gear. The fact is that if I move the same gear from my Kumo into the Hatcher, it's equally as comfortable, despite the weight, and I then have luxury of not being limited by bulk.
Just my two cents.