If you are serious about adventure games, you have to own this.
All adventure games rely heavily on storyline since it's the only motivation to play the game and the story that "The Longest Journey" has to tell is definitely one of the best in it's genre. The characters have amazingly real personalities and backstories that you think their world really exists! It's really that wild. Also, there are a lot of side-stories and interesting ideologies in between the main plotline you really feel the sincerity of the developers for putting a lot of effort and resources into this game.
If you are trying to experience the adventure game genre for the first time, make this game your debut. This game is worth every penny(even full price) if you still can find it.
KingLim