I've had mine for a few months now and it has become my go-to bag for all my day-to-day stuff, essentially replacing 3 of my older bags. It is very durable and things are very easy to get to. The two outside stash pockets are great for my camera gear, and the various zippered compartments and little pockets inside the bag are extremely usefull (phone, ipod, pen pockets, Moleskine, CD's)
For work I use it to carry my laptop, Wacom tablet, cables, several notebooks and pads, phone, ipod, DSLR, 2x lenses, spare battery, and tons of little odd's and end's in the various little pockets inside. For day hiking I can carry all the food and survival gear I need for a 2 day trip, camera, and a small summer/spring sleeping bag. The laptop sleeve will accommodate a water bladder (i.e. Camelbak) and has a slot at the top of the pack where the hose can come out and the loops on the strap can hold the mouthpiece in place. And when I go out of town it easily caries about 1/2 of the stuff I carry for work, plus 2-3 days worth of clothes and shave kit.