Nice round up of backpacks. But you missed some key bags. Tortuga 40L and the Pakt backpack. Both backs would have been perfect comparisons on this video.
Bought the Peak Design a few weeks ago along with a couple of their camera cubes... for a camera and a lens. It was a disappointing experience. It all looks so pretty until you start to use it, and then it becomes impractical and fiddly. The only thing i'd use it for is an airport carry-on, and there are far better and more practical options out there. Your shoulders will not thank you if you try carrying it for more than a couple of hours. I ended up using small camera cube inside a Fjallraven Greenland shoulder bag instead for city adventures (which was very useful as carry on personal, too. Not very theft-proof however. Small items could be pilfered if you aren't attentive).
