Just received it this morning. The bag itself feels really solid. At a price of $56.71 USD ($38 without freight charges), this is a good buy considering the fact that Crumpler messenger bags back in Aus are really expensive (around $140 AU).
The bag itself.
Interior of the bag, with my MacBook Pro and some magazines.
Delivery [from US to Malaysia] only took several days, which is amazing. You could have a look at it here. (Currently out of stock at time of writing :P)
I personally rate this bag 4/5 for build quality, 4.5/5 for design and 5/5 for value.