I'm a bit torn on this one. I firmly believe that superheroes work best when set in different genres (Winter Soldier, for example, is a 70's/80's spy thriller that happens to have superheroes in it), so I'm intrigued by the concept of mutants in a haunted house-style horror movie. It also fits fairly well with the idea that this is supposed to be an adaptation of the Spirit Bear storyline.
However, I'm not really sold on what we've been shown so far.
I will definitely be interested to see additional trailers to see if we get more power usage, etc.
My husband is less sanguine on the scenario than I am because he dislikes them cherrypicking storylines without build-up, but there's not much to be done in the Fox-verse as they have more or less separate storylines for their Marvel properties as far as anyone has said. In all honesty, I think that unless they're willing to take the time that Marvel has to build the MCU (and not try to shortcut it), the only way we would ever get a really proper adaptation of the X-characters would be a GoT or Westworld style television show. The stories that were told in the X-titles tend to be better suited to long-form storytelling over many hours, not just squishing them into 90-150 minutes, IMO.