Pro: Nice worldbuilding game that pushes you to write as a traveler. Following its instructions and spirit will lead you to fill out some interesting details of your world. Perhaps even exploring it in another creative endeavor.
Pro: Attractive visual design with the manual
Pro: Instructions are short and sweet and to the point
Pro: Nice for a bit of worldbuilding and its prompts lead to fun explorations of the setting.
Pro: Gives you enough guidance without being constrictive.
Con: If you don't like journaling games then avoid this. Otherwise, it is a delightful exploration of your imagination.