Anyone out there use one of these packs? I've been eyeballing it online (can't seem to find it locally) and was wondering how it works as a gear hauler? I'm looking to put 2 Sci. Anglers fly boxes (system) in it along with a digital camera, thermometer, a sandwich, my rain-jacket (when needed), strike indicators, sink putty, license(s), tippet material, hemo's, nippers, and that's about it...

Is it comfy? Is it a pain? Anyone?