Atmospheric and claustrophobic. Probably a headache to watch if you have problems with strobing flashing lights - but I didn't (at the time) I dug the vibe. It's a slasher type of weird low budget horror movie. Not plot driven but really entertaining. I guess I was in the right mood for it. If you're critical and analyse stuff from a film making PoV there will be flaws to find.( Like with all movies not made by armies of people, in which the individual is a cog in the industrial machinery - yes there will be imperfections)
So if you like the wild, the flawed and the wicked - then this might be cool. If you're in the right mood for this type of atmosphere that is. And if you're ready for flashing strobes and garish colours. Which I was at the time...