hits just right
We were gifted the diaper bag/backpack and upgraded to the duffel after the first use. For us the diaper bag was much too small for travel (it was fine for a day out, just not a flight) and the pockets and top backpack 'brain' didn't expand nicely to accommodate a laptop in the back and a book in the front. The duffel is much roomier while still working comfortably enough as a backpack in the airport. I notice we reconfigured the inner compartment many times mid-trip to adjust to our needs, and I love the external straps for clipping the baby carrier on when we weren't wearing it.
