This was my first ever horror movie and I have to say, I loved it! It exceeded a lot of my expectations, and while the ending was a bit unrealistic, I was still very happy with it. I slept with the lights on that night, if that's any indicator.
The movie also sends a good message about death, which is that no matter what, when it's your time, it's your time. Nothing can change it, and it was very thought-provoking.