I was a bit skeptical, due to low ratings,but decided to watch as I thought the storyline was interesting. It did not disappoint a bit! The story is unique, the main character is fun to watch as he seems real. We haven't had movies with similar stories for a while and I definitely found this one very interesting.
Acting was pretty good too. Maybe not the best,but I've seen much much worse so this was also a plus for the movie.
I also liked the camera work. It was slightly different than usual. It almost seemed "modern" and new. Not sure if that makes sense.
Overall, I was impressed and I think this movie deserves a really good scores. Certainly there are many blockbusters that don't even have 1/10th of what this movie has. Though I guess in this day and age, people want action and don't want to think and this story makes you think about your actions and consequences.