I love the color and the durability of the bag.  I had it completely packed with 1 laptop, 4 iPads, the cords and three binders and it still went in the overhead of American Airline and United Airline plane.  It convert quickly from back pack to a rolling bag.  You have to ensure you hold the straps down to prevent them from getting caught on the zipper.  I have been using this in the snow and ice and the bottom is very durable.  The bottom line, it can carry more than you can carry on your back  in the many pockets.  I put my keys and cell phone in the smallest pocket, training supplies in the next one and my tablets and laptop in the next.  In the largest compartment, I carry a number of things.