I was able to check out the Obscura and deemed it too "light" in construction for what I wanted. For those times when I'm carrying light in terms of photo gear I continue to use my LowePro Slingshot if water needs are low, or a Camelbak Cloudwalker with a Pacsafe insert when some water would be good to have along. That still left me with a need for a bag that could handle both a decent amount of photo gear and a hydration bladder ...
Luckily for me, I was also able to check out a Clik Elite Medium Nature and it has a much beefier build than the Obscura. So much so that many prospective buyers would probably find it too heavy a bag. Besides that heavier build, the bag also has a much more refined harness system and carries much lighter than one would initially guess - even when full of photo and personal gear and water (there is room for a 70oz. water bladder). While it's a bit big for mountain biking use, it carries so well that it really hasn't been an issue; though I may change my mind on that a bit once the weather here really warms up this summer
For long day hikes and off-trail peak hiking it's been stellar. Now before I sound like a company shill or something, I will say it isn't perfect (then again I don't think anything really is). There are a couple of head scratcher decisions on the company's part. Like camera insert dividers that really don't fit as well as they should: a bit taller than the enclosure, and in one case far too long unless positioned
just so. The other is the bladder hose exit hole. I understand a desire to block entry to dirt and water, but getting a Camelbak's bite valve through that opening was a
huge pain in the arse. Some type of rubberized fabric or elastic would have been much, much better. Those are the only real nits after a few weeks of use.
For someone looking for a hydration compatible bag that will hold a body with several lenses and/or accessories (including easily stashing a packable tripod on the outside) it's really worth a look. I think the main "issues" with it for many people would be the weight and bulk upon first picking it up, and the very big frustration of finding one to check out before plunking down their cash. Still, I've found it to be a terrific bag that carries much lighter than it's size and weight would have one believe.
Lastly, their Escape also looked like a good option as it carries more water (but less personal gear) and also has the better harness; however, it seems like they are getting a new version ready and I couldn't find a sample to look at and try on.