I’ve put about 120 rucking miles on this pack with 30-70 pounds of load. Every indication so far is that the construction and materials are worth the cost.
Once you get it set up properly—tightening everything the F down and then tightening more—your hips carry all the weight, and nothing bounces.
The sleep system pocket at the bottom will fit a set-up battle belt if you fold the belt really aggressively.
The side pockets fit a USGI canteen perfectly. The belt pockets are huge—I can fold my Mechanix MPact gloves in half and cram them in there with room for a headlamp. You could put a compact IFAK in the other one.
My main complaint is that the pouch on top flops around way too much when moving with purpose. Cramming a poncho or other soft, bulky item in there helps, though.
I’m 5’11”, 190 pounds, 44” chest, and getting the straps snug enough to sprint with means tightening them down as far as they will go. I could see my small-framed kings and queens finding they just physically can’t get an optimal shoulder fit.