Great bag but I do have a few comments.
The main rear pouch is difficult to access and although it is a great to thwart thieves I need to be able to access it without so much fuss.
The bag itself is made in a very sturdy manner however my experience with precious pac safe products is that the bottom is not protected enough when one lays the bag down and over time it gets badly soiled or the fabric and trim become worn or deteriorated too soon. Why not a tougher bottom liner or some knobby rubber bumpers to protect the bottom?
The front zipper compartment should have a proper zipper lock like the rest of the zippers. The plastic parking spot for the zipper is difficult to secure and undo. This seems to be an economical nicer sight.
Otherwise I found the design and construction of the bag to be very good othe than these points I raise.