I have seen the trailler of the movie and it is pretty much good and horrifing, some of the cast of the movie is same as the other one. But after seeing the trailler I can say that it is move horrifing the the last conjuring, the story is connected to the first part of the movie.
Although besides horrer the events in the mivie that they are going to saw was based on the true story.
For me the movie is on my waiting list and and I also recommed you to watch this movie as soon as it release