I think im the first one to post that liked the movie.
If you listen to the commentary, you'd learn that this was an extremely low budget movie and tried to get away from cgi (only 4 times were cgi used and all are extremely small parts of the film): the crows in the very beginning, the glass in the car underwater, the wearwolves on the train (all other wearwolf scenes were done by "a guy in a suit"--and two controlling the facial features), and the veins "popping out" (the coloring was air-brushed on). The whole underground battle sequence (at the end) was done using only one corridor that the set had to change to make it appear that it was a huge arena :Q.
Another thing i really liked is the fact that they dont wear sunglasses to hid their eyes from flinching/blinking when they shoot the guns--thats the main reason arnold

and most action stars wear them. They deceided to tell the actors too keep their eyes open--watch it again and because of this i believe you will like the movie even better, but then again im a huge fan of vampire/wearwolf movies.