It's a pretty meh manga all things considered. I don't consider Hellsing as a horror (if it was intended as one it failed in that department) and is more just a straight up action and it's.. okay I guess. Feels visceral enough but because the characters are vampires and ghouls they have an annoying ability to keep coming back to life no matter how much punishment they take.

There's not really much a storyline which is a shame because the whole Vampire Van Hellsing thing has a lot of potential but it doesn't really live up to much. If you just want a manga with some vampires and mindless action Hellsing might be okay for you but if you're looking for something more it won't scratch that itch.