Unfortunately, the transition from PC to Wii has brought with it a few odd juddering graphics, and some very uninspiring motion-reliant tasks you have to "figure out" as you go - it's like Zack & Wiki for the drunk.
Still, sleuth-fans and point-and-click nuts will probably like it, and Agatha Christie fans will be intrigued by the plot changes, not to mention the multiple endings. Just bear in mind you can pick up second-hand copies for PC for less than a fiver on Amazon.