Thank you!
I only put my laptop in it for the flights. It's fine for my 13" iBook, but it's not light. At the same time, I was carrying my jewelry case, digital camera, travel pillow, a paperback, and normal stuff: sunglasses, wallet, cell, etc.
When I'm visiting clients, I don't have my laptop, but I carry a few folders and a plastic case for other papers.
So far, it's held up great--I don't see any signs of strain on the bag.