I ordered this item from Amazon as it was being offered on their site at a price well below the rrp. First of all, the bag is very well constructed and feels very sturdy. The reverse-opening lid is great for access when you're on the move, with the front flap - which is there solely to allow access to the zipped front pocket beneath, and not the main compartment - adding to the bag's asthetics as well as acting as a red herring to any opportunist thief fishing for your equipment.
In terms of space, it is able to contain my Eos 450d with 18-55 kit lens attached, a EFS 55-250 zoom and a Speedlight 430EX II (in it's own case), with additional room for filters, memory cards, leads etc. There is also room left in the central division of the main compartment, just below the camera with attached kit lens, to store either a small fast prime or a battery charger.
With the addition of the microfibre cloth, which prottects the cam's LCD and doubles as a lens cloth, as well as the waterproof cover that fits tidily into a pocket below the front pocket, the bag shapes up to being a very portable solution for those who wish to travel light with a small amount of equipment.