I just got my Brain Bag - I like it, great workmanship and design as usual.
I *did* find one thing I was sad about, and that was that neither of the large compartments contain any small pockets, pen pockets, etc.
I'm sure that the idea for this bag is that all small things either be carried in the back pockets, or in separate containers held in one of the main compartments. But I have things like a checkbook, pens, and other flat or not very thick objects that would be perfect in an inner pocket and which just make the back pockets full of too much stuff. If I put them in one of the main compartments, they puddle at the bottom, lost forever. :-)
Perhaps a teensy bit more rigidity in the middle wall separating the two compartments would allow for a few small pockets on one side of it or the other to support the weight of a few objects without sagging.
Any reason this wasn't included in the design? It's the one thing I wasn't happy about.
P.S. I'm sure no design is perfect for everyone. :-)