There is a lot this film has going for it; it looks great, the setting is really creepy and it uses some good techniques to makes some of the situations the characters go through legitimately terrifying.
This is also where it falls down however as while the situations are clever and put you in the place of the character to where you wonder what you would do, you never really care about the characters themselves. We know next to nothing about them and they don't really stand out, so while we can replace ourselves with them in these scary situations, you could also replace them with any other character and it wouldn't make a difference. What's more it never really feels like there is much at stake, also it starts off by being really precise about what the people are there to do and how much time they have to do it in and then most of this is forgotten.
Overall this film could have been really good with a little more depth to the writing and a little more time spent getting to know the characters, but it is still worth a watch for the situations and setting alone.
This is also where it falls down however as while the situations are clever and put you in the place of the character to where you wonder what you would do, you never really care about the characters themselves. We know next to nothing about them and they don't really stand out, so while we can replace ourselves with them in these scary situations, you could also replace them with any other character and it wouldn't make a difference. What's more it never really feels like there is much at stake, also it starts off by being really precise about what the people are there to do and how much time they have to do it in and then most of this is forgotten.
Overall this film could have been really good with a little more depth to the writing and a little more time spent getting to know the characters, but it is still worth a watch for the situations and setting alone.