the technical data can be easily read yes, so just personal impressions / experiences
Positives:
+ The Ruchsack is conveniently located and can be adapted well to the back, even to different back lengths
+ The photographic equipment is convenient to pack in the integrated "pocket", which is easily reached from the outside. In my case fits easily my camera with attached 40mm lens with an additional Sigma 18-30mm and the huge telephoto everything in the camera bag (if the swimsuit does not fit: the support of Lowepro happy to help)
+ The domestic trade sitting outside, so that possibly leaking water bladder or not bottle inside for valuable equipment can penetrate
+ Integrated rain cover, because I do not always adhere to the Adicional rain covers
Disadvantages:
- Relatively heavy backpack, robust construction does the rest
- A long strap to Hüftbandverstellung, which then must be stored somewhere, so nothing slouching