Let me be clear: if you have a huge bulky camera, 5 lenses, 2 tripods and a million other things, this backpack is way too small.
For what I do, which is amateur photography while traveling, this is just perfect. I have a mirrorless camera (full frame), 2 lenses, batteries, cables, filters - and I am able to fit all of this in the small camera bag.
The "normal" part of the backpack is very spacious and I am also able to fit a water bottle (750ml), a laptop (14 inch), glasses, headphonses, and random stuff.
It gets kind of cramped but that's not the purpose of this backpack - this is not meant to be used as a hand luggage.
The straps to use the tripod are quite tricky to set-up (the videos and photos on the website are not very clear) but once you understand it's easy and very secure. I hiked mountains with pouring rain with it and I never had any issues, it doesn't feel unbalanced if you place your weights correctly and have a light tripod.
So, this is a great choice if you want a backpack that has also lots of camera functionalities, is waterproof, feels genuinely solid and has some weight to it, then this is it. It feels like a high quality product that does not break. You can see the dedication they put in it. The sand variation looks amazing!
Lovely!