I think one of the reviewers here noted this, but it would have been a better design if the "pens & pencils" organizing pocket was the one furthest away from your back, rather than the 2nd farthest away. I also think the shoulder straps could stand a little more padding, but I totally fill this up with heavy stuff. 15" macbook Pro, iPad, Digital SLR with heavy glass lens, rain jacket and rain pants, medicines, fleece, iPod, keys, travel documents... It holds a ton, and its well designed. I love the dedicated laptop compartment, which allowed me to drop a padded laptop case (and the pound of weight it added). The back is stiff and well padded, so its as close to perfect as I have managed to find. The price is pretty steep for a travel backpack, but I am happy that I bought it.