I travel frequently and when Gatwick, my preferred airport of departure, started rigorously enforcing a policy of allowing only one piece of hand luggage on board a flight I needed to find a bag that would allow me to carry my laptop along with all the other paraphernalia that I usually take with me.
This bag has proved to be perfect. The laptop section just holds my 16" Sony Vaio (beware - a 17" laptop would be too large) along with cables and mouse, whilst the other large pocket carries documents and a change of clothes. A medium sized front pocket carries my chunky Canon digital SLR with attached wide-angle zoom lens. A top pocket is conveniently located and sized to hold my wallet, iPod and mobile phone. They even have a clever little hole through which you can thread your headphones to listen to the iPod whilst it is stored safely inside the bag. From the outside, a total of 8 external zipped pockets of various sizes and two webbed pockets is accessible, with a few more useful zipped webbed pockets hidden way inside.
The bag is comfortable to carry, robust, and you only have to look at it to see the quality. A really great bag and truly good value at the price.