Ignore the negative reviews.
There is a lot of nitpicky reviews about this show. Since I never saw the original series I can only comment on the five episodes I have watched.
The acting is overall good and there is a foreboding that seems to pervade each scene.
The setting and filming is very atmospheric. Clearly the director has a clear vision of the setting and the story.
One thing I think that is well done and clever is that there are no bright colors only drab colors that enhance the pervading atmospheric gloom of this mysterious school.
My only quibble is that the characters while watchable are not likable - don't know if was the way they were written or the actors portraying them. - so it's hard to root for them as they seek to learn the secret about their school.
Overall, I'm gonna give this 8 stars - as each episode has been a fun watch. Watch it in Spanish with English subtitles