I read the original and saw the trailer. While it looks very good I'm skeptical that it will translate very well. A lot will have to be cut to make it fit into one movie (2 hours or so).
The fact that it's not very well known outside of comic circles is a big minus as well. Then again popularity is not a measure of quality nor is box office draw/sales.
So the optimist hopes that it turns out to be good. The success of the movie financially is not that important since it is not meant to have a sequel plus other movies have already proven comics to be a viable source for movie ideas. It's no coincidence that there are more and more comic based movies that have come out in the last while.