A lot of photographers seem to like the Peak Design bags, that’s what led me to them. They don’t really have a water bottle solution but the quick access is definitely there and I like the organization setup a lot - very easy to customize. There wasn’t a price listed on the link you shared but I think the Peak Everday bag is about $260 USD.
I like a lot of Peak Design stuff, but their backpacks are designed for small people and are pretty heavy at the same time. I'm 6'4" and a bit barrel-chested, and the padded part of the straps stops right at my armpits, which is extremely uncomfortable.
I did use the 20L. I have a similar issue with the 5L cross-body bag. I dunno, maybe it's not just my height, but my shoulders, arms, and chest. It's not a problem I have with the other backpacks I use from Timbuk2, Osprey, or Arc'teryx.