I also was one of the first 100 backers on Kickstarter and don't regret my pledge for a bit. The backpack is really well made with a lot of attention to detail and clever features. The harness and frame work good even with a heavy gear inside. The provided adjustments are thoughtful and help a lot. Materials used are pretty substantial. This makes the pack a little heavy. However it provides good amount of protection for my gear and a resistance to environment. The expansion pouch is gorgeous and extremely useful on a trip. The magnet safety buckles didn't bother me at all, they work good.
Not all is perfect though. I hope, I can provide valuable feedback for PGYTECH for next products.
I had a chance to use and test this pack on a recent trip. First of all, it was accepted as a Carry on (I have the 40L variant) on an international flight without problems. However it was for sure heavier than allowed.
1. The adjustable torso lengths of the harness tends to jump out of selected notch. Which gets annoying, because you definitely feel the pack hanging crooked on your back. The solution is to put the pull tabs behind the Notch-Assembly which locks them in place pretty good. A locking solution (velcro or something) would have been slower to adjust, but not so easily displaced.
2. The buckles on the expansion pouch are quite sharp and don't get undone easily, when the pack is full and lashed down. You first need to loosen the straps and then open the buckles.
3. The water bottle holders on the side flaps are good and non intrusive. However they are a little tight, when the side flaps are loaded (e.g. batteries on one side and some gear on the other.
4. speaking of side flaps: the side without camera access could have used some internal pockets with better holding potential. The pack doesn't have any velcro or zip pocket for organization. So things tend to fall out, when you lay down the bag to get to your equipment.
5. There is no admin section. Nowhere to put a pen and notebook without them falling out or getting in the way. this is a missed opportunity in my opinion.
6. The harness adjustment goes from Medium to XXL. People with smaller torsos (my wife had to carry the bag for a minute) will not get the full potential of the great harness. I don't know, if the smaller Flex better fits shorter users.
7. I wish, the webbing strip for a capture clip was a little more padded. It is made of a folded nylon with a little padding. And my Falcam F38 clip worked good without slipping. But it is on the edge of not gripping tight enough. The implementation by Peak Design on an Everyday Sling feels better.
Don't think I wouldn't buy the Bag again. It is very capable and good piece of gear. Next one will be better, I'm sure.