The walkabout is perfect for a short trip.  My only complaint is that it's bigger than 22". My suitcase had to be gate checked because it did not fit in the overhead bin of an older US Air plane (that seated 3 on each side - it was a decent sized plane).  It also had to be turned sideways to fit on a different flight.  Only on one plane could I push this roller in and have the door close over the wheels.  That's very disappointing.