If nothing else it's at least several leagues better than the sequel they did.
Actually, one thing I like is indeed the design that went into it. It wasn't really going anywhere with it, but I can appreciate the effort that went into actually making it. Sound design I thought was good on the whole as well, not just the music.
Looking back on it, I think my problem with the movie wasn't that it didn't do enough like the series: it seemed to me that it didn't know what it wanted to be. What I mean is that it first seems like it's just trying to recreate the first Silent Hill with gender-swapped Harry Mason (the reason for which is fucking mental by the way) but then introduces iconography from other games, then it of course changes the story completely. That in itself isn't a problem, it just seems that, in actuality, the film was being held back because it was a Silent Hill movie. If it just had the standard tertiary elements, such as the town and the design, but the story was completely new, it probably would've been looked upon more favorably. Take Resident Evil: not the best movie, but because it makes it seem like it just takes place in the universe rather than replicating any one game, it's easy to view as just a fun zombie movie if nothing else.
Still, it's a much better horror movie than most other horror movies released in the past 5 years, I have to give it that