Maybe more space in the main pack as opposed to sustainment pouches

Great good quality

Amazing pack

Pros: The frame makes this one of the most comfortable rucksacks you could ever use.
If you are a tall person, the ruck sack doesn't dig into you back or over sway. It makes unbalanced loads pretty bearable and feels light. The material is tough, water resistant, and light (sort of). Lastly, it focuses on being a modular rucksack.
Cons:The frame makes it heavy, and yes, this contradicts the pro. But the frame adds a good amount of weight, and you can take it out and change it for lighter ones. Just don't the frame is the best for it, and it's worth the extra weight.
The opening is terrible and downright, insulting that it doesn't expand or even stretch a bit. If you need to load a sleeping bag in it, be ready to possibly rip the lining in the mouth of the ruck. The zippers to access the inside sometimes pop open when you put stuff in, and also zippers to get into the bag are dumb, I hardly use them and wish they weren't there. Overall its agood replacement for the standard issue ruck

I haven't figured out the all the buckles, pockets, harnesses(And harness system adjustments), straps, velcros, mesh, flaps, panels, slots, sleeves, pouchs, zippers, molle , and hidden pockets yet... But it has all of those and ALOT of them.
Pack-YO-bag! I have 3 days worth of gear for all seasons except change of boots in this bad boy. It even fits (while uncomfortably and using multilid strap down method) a large heavy down canvas, wide sleeping bag.. definitely not going to keep it in that, but IT FIT.

The Terminator said "I'll be back" but if he had this bag, he probably wouldn't have to

The best rucksack ever

I have only taken this pack on one trip and one ruck march so far, but I am very happy. It is very comfortable, fits everything I need, and the layout of the various pouches and zippers is well thought out. Happy with my purchase so far.