I haven't read the book, so I don't know the exact story of the novel. But as an audience to the series, I felt that there were definitely some important details being left out in some scenes which eventually left me baffled with lots of questions.

I don't know most of the casts here except for Teresa Palmer and Matthew Goode. I've watched enough of their films to know that they are great actor/actress (Especially Teresa Palmer in LIGHTS OUT).

However, their love chemistry in this series is lacking. I don't see myself rooting for them just like how I rooted for Edward & Bella in TWILIGHT, Lucifer & Chloe in LUCIFER, or even Elijah & Hayley in THE ORIGINALS.

Besides that, 3 creatures in their world, vampires, witches & daemons, they gave elaboration only to vampires & witches. So little is mentioned about daemons in Season 1, and absolutely nothing in Season 2, it's almost like they don't exist at all. And... while they made the vampires sound like they are so so powerful, after seeing how they fight, it was so disappointing, like child's play. At least the witches' magic powers are enchanting, making them look convincingly powerful. But the vampires.... nope. And as for the daemons, like I said, there was nothing about them, so I don't even know what role they play in the story.

Season 1 did start out pretty interesting, but eventually it became very very slow and draggy, in the end I found myself not giving 100% attention to the series while watching it. I'll probably still continue to follow their subsequent seasons, but just not as enthusiastic as "gluing my eyes to the TV" unless they decide to up their game in the future seasons.