I bought 2 of there packs, they were labeled as some sort of large hunting pack. After they arrived I looked them over and for the money I spent I was not very happy, but I figured that had engineered the product to last....I was wrong! The sewing upon first inspection was not nearly as good as even the cheap Tactical gear I own, The material though pretty silent was much thinner then the tactical gear as well, it was more like sail cloth or something like that. I said to heck with it, I didn't want to pay return shipping and figured they may hold up.
Well we loaded them and took them out 3 weeks later on a 3 day pack trip through Eastern KY. Well three days is not a long time so our loads were pretty light, I let my wife pack her own bag so hers was heavy and after the first 2 miles my pack was heavy and hers was light but she learned a lesson.
About 3 hours in a main compartment zipper failure when retrieving the collapsible dog dish, it never worked again (Maybe 20 total times using it).
failure 2 the sternum strap on my pack failed, the plastic buckle broke.
failure 3 The straps sewed to the bottom ripped of under the weight of my rain jacket. (Think ,small)
Overall they were grossly un comfortable, they came with hydration bladders, they leaked all over the pack.
I still have one in the back room, it its now just a relic of lessons learned.
Currently I use a Tactical Tailor 3 day pack, I can go a very long time out of that pack when packed right. Its comfortable, strong , and durable.
IMO you should buy quality one time, overall the comfort gained will be worth every penny. Remember that this is your car, your home, your kitchen, your wash room, your everything if you gotta actually use it.