I have been using this pack for around a month now and I am very impressed with it so far, I especially like the unrestricted movement in my arms that I do not experience with regular strapped bags. The turn 270 degrees to have the bag on my front has been useful on a number of occasions such as when I am geocaching and need some swag or a spare out of my bag, the other was when I was camping and had a 40L pack on my back.
The number of pockets, straps and loops means that gear can be stored away where it will not move. So when you need that pen knife or para cord in a hurry it will be in the exact place you left it, handy if you find yourself looking to build a shelter in the rain.
I like that it has a number of molle straps so you can add various after market pouches and accessories to your bag to suit your needs while outdoors.
I would like more internal loops and a slightly bigger main compartment, but other than that I cannot find fault with it no matter what I put it through.