I have used their packs and other items and they are very rugged and well built. You may give up a couple of ounces of weight for their material, but they are tough. On top of that, they really have made it so versatile you can either pack in for over a week, or pack for a day or pack game out. It comes apart and can be put together in many different configurations. I have several packs from other companies and now are used to let my friends use them if they don't have a pack as my Oregon Pack Works pack does it all. Seriously, consider looking carefully at all the things you can do with that pack and if your lucky enough, try one on and see how weightless it feels with the suspension configuration they have.
OK, don't want to sound like a commercial, but they are a tough, well designed pack made for hunters.
Flip Freeman
Bend, Oregon