I ended up buying four of these.. Neither me or the ones who got the others have anything bad to say about them, they just work.. They are light, seem to hold as much as we want, and so, we are happy!!!!!!!!!!! In the USA etc, the backpack might be a good thing, but in Europe, the shoulder thing is the way to go, plus with the shoulder bag, you can get to stuff easier... If I did not already have a backpack thing from another vendor, I would get the backpack model as well. Nice product.. worth the money.