"Don't give up", "Search further", "What to do next?" & "How to do it?" thos
The sequence of the game is pretty solid, you can enjoy the story indeed, but only if you read it through, i'd recommend to you reading all of the documents and the reports, many riddles are solved by them, and to make sure to examine EVERYTHING that you can examin, look up and down, right and left. Another hint for gameplaying, always think of what do you want to do? and how can you do it? mostly you'll find the solution, don't give up if you feel you are stuck, cause most probably you missed something, so just go back again and check if you did everything right.
The game takes you to several places, London, Switzerland, & New Orleans, though you don't get to see much of Switzerland, i really admired the designing of New Orleans, you can see small nice details, you can also see that in London.
BUT, the game can be really annoying sometimes, when you don't know what to do, and you are missing a small detail, you keep on going around and around, most of the guys would just uninstall the game, but you can check for help if you are totally stuck, try using your mind and think creatively.
I just finished it and well, it was worth the playing, not a masterpiece but it's a good game.