I watch many horrors, now and I've done for years, I liked it, but I guess it also depends what you want from a horror, I am particularly passionate for supernatural and I don't really care to much for slasher or to much blood, but if the movie is good I don't mind if some blood runs trought it, like this one does, I also try to watch horror from different cultures like Japan, China, Italian (also because that's where I come from) and, like this one, Spanish, Spain have been released some very good horrors, US production can be good and have big budgets but most are predictable and use the same old formula.
This movie has a new take on the exorcism theme and the acting is really good, it has some bloody scenes but all togheter I think it was good, good ending as well, watch out for a little extra after the credits