I have not used this pack in the field, yet. My initial inspection - the zippers seem to be a little light weight. The water bladder compartment is excellent sized, will easily handle 3 liter bladder, and has great access through zippered, and insulated compartment that rests against your back, provides great cushioning. The waist band packs hold my GPS unit and range finder. It is a little difficult to open/close the waist zippers while wearing the pack. Some of the strap ends tuck neatly into the pack, some have loop band to secure strap end. Some strap ends will hang loose. I like the duel side compression straps and the vertical Y strap. These straps are a little thinner than what is on my other pack, but I think they will do the job nicely. The molle stitched loops on each side and front of pack, are all the same size. I wanted to carry my tripod (Primos Gen-3 Trigger stick) on my pack but the Molle loops were too small for one of the legs of the tripod to slip thru. I fixed this by cutting out the stitching on top and bottom rows of the Molle. (a tough job because all the stitching on the pack is very stout). Now I can slip one leg of the tripod through the widened molle loops very nicely. The bag has waterproof lining inside all the compartments (except the one I accidently nicked with my razor knife while trying to remove the stitching) There is ample straps at bottom/top/back Y strap to carry coats, rain gear, pad. The inner compartments have plenty of storage. The padded backpack harness (shoulder straps) are sewn into the pack so cannot be removed. They appear to be strong enough to carry any load I'll want to carry. This is a good pack for hunting. It is everything as advertised and, I think, it is an excellent value for the money. I knocked it down a star for versatility (because of the narrow Molle Loops) and durability (because of the light weight zipper). One other thing, this pack has a 1 year warrantee - but you have to scan the QR code (I don't know how to do that and I don't want to download another app - with all the additional spam that will bring) so I'll just take my chances on the pack holding up.

What do you get for $35.....??
Overall design - good for a range bag or limited weight, throw over the shoulder to carry some stuff. The pocket / pouch layout is useful for a numnber of things, but for - laptop carry, no go; for concealed / extra weapon (internally) no go. There is one random 1" strap that goes horizontally though the largest pouch that serves no real purpose.
Sturdiness / Durability - I have taken it rucking a number of times with 20-35 lbs in it. 2 things I learned from this - 1. While I had no structural / operational failures from the bag, but it seems like it is straining to support that weight, in the zippers and stitches. 2. It is NOT comfortable. There is no padding in the shoulder straps. There is no padding in the waist straps. The kidney pockets are good for nothing but a small flashlight, wallet, or other small object - not even big enough to hold a cell phone, and they are so small that they sit back to where unless you are a human Gumby, you can't effectively reach them while wearing it. Good backpacks use the waist straps / kidney pockets to take weight off your shoulders. Not here.
Pros:
The molle strap usage on the bag does make it nicely expandable, and ovrecome the lackluster pocket modularity.
The side & top compression straps do a good job of making the bag no larger than it needs to be, and can compress down to whatever a small load requires.
I could drone on, but you get the idea - its worth the $35 if all you want is a cool-looking, simple gear bag / range bag to take on a low-demand outing, but for an actual backpacking trip where gear performance is important, you're going to need to spend some $$.

My husband LOVES this Backpack! The amount of space inside it is unbelievable. He has no complaints and even asked me to make sure I made a comment telling how impressed with it he is. The zippers are sturdy so far, it holds ALOT more than his other military bags do, and you can't beat the price! Best BANG for your buck for sure! Also thank you to the seller for emailing us to make sure we liked the product or offered our money back! I didn't have time to reply with everything we have going on so I wanted to make sure I came to speak good, where good is due and recommended this bag to everyone who needs a LOT of space, and a sturdy, comfortable, budget friendly camping/shooting/ literally anything you need it for bag. Also came to say his AR pistol fits in it without an issue!

Really like this backpack. I only use the front of it mostly. And then in the main compartment I just carry my med kit. This bag is my daily carry bag so it has to hold quite a bit and does it with room to spare. I will say that I'm 6' 230 lbs and it is on the verge of being a little short on the shoulder straps. But the fit is very comfortable and roomy. I love the fact that the water bladder pocket is lined to keep cold. If I need it it's still cold at the end of the day. Also the main pocket works great for a change of clothes, plus a shower kit for those over night stays. Plus it will even hold my big old lap top! Can't say enough about it.

Overall a pretty good product. I enjoy the size and many storage areas. The insulation in the camel back area is awesome, helps for when I decide to walk to the grocery store with the cold items.
The two issues I noticed that stood out to me are the lack of the straps being secured at the end to prevent slipping. I had to super glue the ends and use Bobby pins to secure the loose straps. Seems like a small fix for the maker to do, to create a big difference for the buyer. Also the stitching on the top of the bag was looser than I would expect for a bag that is marketed for outdoor/tougher use than just a work/school bag.
All in all we will have to see how this holds up. I did enjoy the fit and amount of storage it has when I took it on a 4 mile round trip from home to the grocery store and back. I did also buy a water pouch by the same manufacturer and it works well and doesn't have that awful chemical smell that my previous water pouch had. That also goes for the bag not having the super chemical smell.
Will update if there is any further issues, but overall I find this backpack to be a pretty good item and while not matching the high end makers, it provides a cost effective alternative that gives folks who don't want to or can't afford fancy/well marketed items a suitable alternative.