A lot of fun.
The puzzles are a little strange and seem almost random. The beginning has you arranging books and pipes on a boat after a vandalism. What vandalist would mess up the pipes of a sink? I found that a little strange. Most of the other puzzles are challenging and really seem as if they belong there. One of the locks in the game has a strange habit of relocking after you already opened it. In other nancy drew games, once a door opened, it stayed open. It's just odd.
Some of the graphics aren't too amazing. The faces of the characters look so much better than their bodies. There are parts when you run around in tunnels and you can get lost since they mostly look alike.
I had no clue who the villian was until the very end. Seriously. The villian is even the person to help you some of the time! I found the story pretty believable and not to crazy.
The whole game was very enjoyable and a good addition to the nancy drew game series.