Good, but could be better
This is a good guide, although not the best. Every dungeon is mapped with treasure chest contents and enemies listed, and there is a detailed enemy list with stats included that are not visible in the game. However, airship battle monsters are not listed for the various world map locations and the bestiary doesn't include these locations. The in game monster list only lists the first place where you might find an enemy (in a dungeon or in the air) and some are really hard to locate. This is important because the game rewards you for 100% completion of your adventurer's notebook and this guide doesn't really help you with that.
Other lists are detailed, with all locations and stats, as you'd expect, although I have found one or two minor errors: for example the level at which a character gains a new skill.
One feature of the game is tracing 50 World Treasures that are found at different altitudes all over the world and the guide is excellent at showing these, as it gives screenshots which are more useful than any written description can be. However, even with this, the precise time in the game when someone will give you information about these treasures is not listed. A minor detail, but a significant one, since you cannot find a WT until you've been told about it.
