This backpack held up during my first trip with it to Norway, and performed exactly as advertised. It was the perfect size for my camera, two lenses, small camera gear, personal items, and tripod. The fabric held up against the wind and rain, and remained sealed. It was comfortable and adjustable, even with added weight. One thing which could be improved on is making the side pockets a tad larger to better accomodate non-PD tripods.
I needed a good day bag with quick access to everything I needed. This bag exceeded my expectations. Enough space for a Sony A7R4 with space for three primes and a filter kit. The Travel Tripod is easily accessible and slides back into the bag with having to fumble with straps or take the bag off. Incredibly functional and comfortable.
I got the 20L a month ago; only worry was that I wasn’t a photographer and the config looked flexible but the videos show that gear. I took it on the plane - then reconfigured when I got to conference. The slender laptop section is snug and discourages me from carrying a lot of paper. I love how the bag stands up and can easy grab things in and out. I also got the bigger tech gear pouch - it takes up a lot of space in this bag. Basically I take this backpack in more places than I used to with my messenger bag. Every detail is nice - including how the straps have a magnet for stowing against the pack.
This bag replaced an old camera bag I had been using for awhile. The peak design bag is not only an extremely well designed backpack but also an amazing camera bag.