I have been using the Medium cafe bag non stop and I am totally thrilled with it. However, I do have a small suggestion: it would be great to have a small flat zippered pocket on the wall of the outside open slash pocket. I realized how important this was for me especially when I take mass transit which I do quite a bit of; and when I am travelling abroad. It is helpful to stash train tickets, a card, some change without having to fish around in the open pocket; and/or open the buckle. Quick access and safety. It should be relatively simply I would think to add a small zippered pocket inside the slash pocket at the rear of the bag!
So far it has been --hands down--my favorite conference bag!