I can't say one bad thing about "Grave Witch". It was good written, the plot was engaging, the worldbuilding was solid and characters were well developed. 
 So why did I give it only 3 stars? It is because in comparison with other UF series this book was just mediocre. There wasn't any distinctive feature that would separate this book from so many others in this genre. 
 For me it was "read it and forget it" kind of book, but I still probably will try the sequel too.