I'm new to the DS, and this is the first adventure game I've played but I loved every minute of it.
After awhile you get used to the way the game works (ie. whether or not to waste your time searching a certain room. Its not the type of game where you end up wandering around for hours because you've missed something and have no idea where to find it). This keeps the game flowing at a steady pace.
The way the puzzles incorporated the use of the stylus was very clever. Its so realistic and makes you feel as if you're really there. I also felt the puzzles were not too easy, yet not too difficult that I found myself getting frustrated.
Definitely a game for any fan of adventure. The graphics are wonderful, plus it has a great storyline. I guess the only downside, and its not a biggy, is that the game was completed in 7–8 hours.