Well, as a user of the Kinesis TT Bag, I can say that I'm very happy with the way it's constructed. I use the divider as a sling to keep my camera suspended above the top tube, eliminating any road shock from damaging it. I also find that it more than adequately holds everything I need, without it's being overstuffed; you always think of that "one little thing more I ought to have with me". I've had mine for just under 3 years; saw it in action at a SUBrevét up at Bryce Canyon NP. The list price may seem high but there is a discount for RUSA members, also for UMCA members IIRC. No matter, it's well worth it.
YMMV
-dg