I gave it a 0/10 because for it to get a 1, it would have to contain something I liked. But I disliked everything about it. If I wasn't there with a group of friends, I would have left. The gore, which is arguably to main part of the movie since it is what all the advertising was about, was tame in comparison to the claims that were made by Eli Roth. The acting, in my opinion, was atrocious. Roth and Tarantino even sent a letter to the government of Iceland apologizing for there portrayal of people from Iceland through the character of Oli. The way the movie makes Slovakia look is far from the truth, making it look like a country stuck 20 years in the past and extremely poor.
Plus, I cannot buy the plot in any way, because I cannot see 2 Americans ever trusting the word of a Russian dude in a hostel that they just met minutes ago.