Beat it in one sitting last week, like most.
Gotta say I was extremely disappointed.
The main game was praised by most (myself included) for always trying to go one above what you would expect from typical Sandbox mechanics.
A more-than-shallow combat system
A more-than-shallow Gun-fight system
A powerful graphics engine
Large, beautiful representation on Hong Kong as opposed to "insert New York or LA clone here"
Then when it comes to DLC, it just seems lazy more than anything else. Seems they established the new "rules" about how to take down the ghosts / demons, then just stopped thinking and made you run around fighting the same enemies over and over.
I know the "you get what you pay for" argument is out there, but I still feel justified in pointing out how "incomplete" all this feels.