I got one from ebay. It has a relatively small camera compartment and large non-camera compartment. It is exactly what I am looking for as a travel backpack. Strap adjustment seems to be well place. I am 5'6", its harness seems to be perfect for me, I think taller people maybe find the adjustment limited.
Size opening is a but restricted, but this I already know. Getting 5D+lens in and out take some practive.
One thing I really like is the outside really don't look much like camera back. I know people with knowledge will know, but to normal eyes, like my house mates, they think it is just a normal day pack. Also I like the main access from the back design.
One thing I do NOT expect is the actualy size of the backpack. It is a bit wider than I expected. I will like it more if it is 2 inches narrow.
With price at about $75, I am happy with it. Overall, I will give it 9/10 too.