It's basically Monster Hunter 1 redone with HD graphics?
Also the idea of waiting around for 20 minutes for your turn at the next Kut-Ku to spawn because you have 100 other people farming him doesn't sound appealing at all. Nor does having 20 people beating on a single monster. The game is already pretty easy with four people.
EDIT: Also Chinese Monster Hunter MMO immediately makes me worry that all armor and weapon crafting will be done through real-money microtransactions like every other Chinese MMO ever.
Is that really information you have or just speculation? I can't imagine that you will have to wait for people to kill the monster so you can kill it again. And I think 20 people doesn't work on every monster.