Book one is basically a ghost story, so if you like ghost stories, you will like the book. As for me, I don't like ghost stories so I didn't like the book too much.
Book 2 is about a girl who suddenly finds out she is a demonslayer. It's a really good book, no cliffhanger, but seems the start of a series.
Book 3 is about a former demon hunter, drawn back into her old profession. It didn't catch my interest and I skipped it.
Book 4 is about witchcraft, about a librarian who stumbles upon witchcraft. The character is a weak one, letting others tell her what to do. I tried reading it, but then moved on.
Book 5 is about dating a werewolf. And it sucks. I struggled through reading the book or skimming through the book actually. The main characters, all the characters were stupid as can be and the book stunk.
There is one more book in the set and I just didn't bother to read it. It was about witches and witchcraft, and I had all the lousy books I could stand.
It's a shame you can't give a book a zero, because if you could, I would. I'm really glad that I didn't pay money for this. I wouldn't recommend it to my worst enemy.