The game is brilliant, and here is why...
1. Original everything. More original execution and ideas than most games could ever dream of.
2. Story and dialoge is amazingly funny
3. Story is genuenly interesting
4. Game completely ignores current game trends and conventions. This is a good thing.
5. 19.99 price
Other than visuals the game isn't broken in any sense. Its playable, and can be challenging. If the game had a production and budget of Alan Wake, it would be the best game this generation.
As it is right now, it isn't for everyone. Here is a good indication if you will like it or not:
When playing Dead Space 2, your reaction is: "Alright! Its more of the same thing, just with more gore. Sweet!" - you may not like Deadly Premonition.
If when playing Dead Space 2, your reaction is: "Fuck! Its more of the same thing, only with more gore. Fuck!" - you should enjoy Deadly Premonition
