I've been using my Co-Pilot as an EDC for several months now and aside from my desire for a bit of padding in the main compartment for my iPad, I haven't had any problems with it. That being said, there is a usability quirk that I wanted to mention for future iterations.
In the 2 front pockets, the O-Rings are sewn to the "back" of the pocket. If you use them to connect to a key strap or organizer pouch, they end up blocking the sewn in organization in those pockets. If you have to remove something from those pockets, you have to "reach across" the strap.
In this picture, you can see, if I wanted to remove something from the suede pocket, the strap is in the way.
I think it would be better if the O-rings were sewn into the "front" part of the pocket.