They've all been aping the 73 film for the most part, and falling short while they did. This had a very different take on it, and some smart ideas of its own. It didn't over rely on jump scares either, aiming for atmosphere and overall creep instead of giving you fluff and "Boo! I scared you." Films like this actually manage to stick in the brain for a while. Every time I thought to myself that a two hour run time might be a bit excessive, it kept proving that every moment of my time it was using was vital to the plot. The gore was well done but not excessive, I mean there was quite a bit, it's a Korean film, but if anything this was a tamer amount than some films from that country.
Just a fun enjoyable creepy experience, nicely done.