I haven't tried the backpack straps, but as far as being a good travel bag goes, it works well. I've put a TSA travel lock on the main section so my items are somewhat secure. The side pouches are constructed in a way that lets you use all the space in the main compartment if you like, which is a great touch. Rolls fully loaded easily enough.

What this needs to be a 5-star item is better balance. With the handle out and fully loaded, it tends to fall over if you let go, which is something of a pain when waiting in line to check in, clear customs, etc.