Is Resident Evil Umbrella Chronicles a good game?

[pots555]

I just finished Dead Space Extraction and I am still in the mood for a good rail shooter.  Before Dead Space, I finished House of the Dead Overkill.  Looking games up, I find Umbrella Chronicles.  With it came some mixte reviews.  Some loved it, saying it is true to the Resident evil roots.  Others say that it's not such a great game, considering the almost no reaction from zombies and some aiming zone issues.  Don't have a lot of money, so want to be sure about this one.  Also, is it long?  I have just finished the story mode on Dead Space and it took only about 6 hours to finish it.  I want something with a little more meat on it.

Please let me know your thoughts on this.