I over pack just so I can take this bag too!
I couldn't wait to get this bag. Just in time for a trip. This thing has space for your junk and then some. I used it for an over nighter and it packed all my clothes plus shoes. Used this bag for a week in chicago and I had room to spare.
One problem is my laptop is too big for the laptop pocket. But my laptop is circa 2004 and is big and bulky. Just a reason to buy a new laptop.
I do like the choice in straps. Go for the shoulder strap, or over your head like a messenger bag, or slid it on top of your roll away.