Love this bag. It's super handy to be able to pack it away. You can wear it as a back pack or pack the straps away if you want a carry bag. Lots of space inside with a couple of handy pockets.
We haven't been traveling in cities with this bag but it has a large pocket at the back (which you would wear next to your back) which I think would be good for putting laptops etc in and avoiding pick pockets.