Pros and cons, leaving it 3 star.
PRO: Music. I love the music soundtrack and this would make a good Halloween map with this soundtrack and theme of the game.
PRO: Different style of a game. Instead of being on the good side or defense side like most games, you will be evil and on the attack side with vampires. Which is my style of a game!
CON: Only one type of vampire, I mean, COME ON! This ruins a lot of the experience!
BIGGEST CON: Unnecessary amount of hours to build a building! Big scam! 4 hours to upgrade and 8 hours to build? I do not got all day! This game is wanting us to buy currency to speed up the process! Well I will tell you this developer, I am NOT falling for your scam! I would rather wait it out the whole day! Decrease the time it is absurd! It ruins the whole game! What would be a reasonable amount of time is maximum of like 1 hour or something like most games. In most games they are not even an hour for most builds!
This leaves it at 3 star, I will consider moving the rating up if you fix these cons. I am being honest with you.