The hints are helpful, and if one has played previous Paradox games, some of the mechanics are similar enough to aid in learning it more quickly... but there are still quite a few things not very clearly explained. Many times I have had to come back to this forum to look up certain aspects of the game for better clarification on how they worked (plots, betrothals, better explanation of honor gains/losses, pretenders, etc). A large part of the problem seems to be that there is no manual included in easy access via the Steam version. That radically steepens the learning curve for anyone who has never picked up a previous Paradox title, and adds to some confusion for those of us who have with newer mechanics, as the tooltips only have so much text space to explain what they do. This has been confirmed by at least one dev, and was going to be looked into.