From what I saw, terrible.
I only made it through about 15 minutes of this movie before I had to turn it off. From the opening scene shot in front of an obvious green screen to the funeral of "Fat Tony". The deceased is so obviously breathing I thought for a moment he was going to wake up and jump out of the casket. When I realized he really was supposed to be dead I just shook my head. He can also be seen breathing (pretty deeply) in the scene where they are cutting his stomach open to retrieve the diamond.
These points on top of the bad acting in the first 15 minutes leads me to say don't waste your time on this joke.