Nikki Kelly wrote Lailah with immense purpose–for Lailah to know what she really is. There are not much twists and turns but is quite thorough. On knowing her being, she is associated with Gabriel and Jonah, both from different dimension. Kelly intend these two to be part of Lailah–Gabriel from her past willing not to push her memories and Jonah, mysteriously wonders what in the heck is Lailah truly. Thus, Nikki tried and successfully put these characters together.
As much as I love the book, most readers rate it poorly. Lailah is sadly compared to Twilight and The Vampire Academy series. This is the part I should have reminisce TVD since it is the only vampire series that I have read but that didn't occur to me. Maybe for others, Kelly's writing is not that effective, but it is to me. Lailah is a pleasantly entertaining read. I think readers should not overwhelm their selves of what they have already read to what they are reading. They are written by different authors. They have different perspectives. Unless they are honest enough to tell their readers they got their inspirations from those books.
Lailah is for readers who love busy fights between beings from different dimension–vampires and angels–cunning love triangles, and horrendous self-knowing.