I usually travel with everything I need to charge my Android phone/iPad/MacBook Pro. Usually. One day at a client's I tore my purse apart looking for my plugin charger. (Still haven't found it.) Then I remembered: I have one in this kit! The plugin charger works so much faster than a USB connection.
The charging cord doesn't handle my Android but it's still good for other devices. Overall I'm pleased with the backups this kit provides.