I have the Knight Stachel. I haven't taken any pics of it yet, but I'm attaching one of Cameron Diaz with the bag I have. Is this the one you're talking about?
I originally saw it at Saks and when I tried it on it was lighter than I expected, but a bit heavier than any of my other bags. However, the straps are pretty versatile...you can wear it on your shoulder or carry it on your elbow and both are comfortable. You can also kind of even outthe distribution of whatever you keep in your bag, because it's split down the middle into two big zippered compartments.
I can guarantee that you'll start filling this thing up like never before, simply because there is that much room. This is where Regina's comment above proves true...carrying this thing around too much could probably screw with your alignment a bit. I guess switching off bags and changing it up a bit couldn't hurt.
Anyway, good luck with your decision. I do love my bag, if that helps at all!