Its a great game, but with little replay value.
Graphically this game is superb, from character to background, everything is in great detail. But the shadowing in this game needs some work as the shadows are fuzzy and looks out of place at times.
Gameplay is definitely one of the most rewarding part of heavenly sword, as it feel great when killing hundreds of enemies in one blow. But Kai's gameplay is more fustrating than it is fun. the aftertouch isnt very beginner friendly and may require you to redo the missions loads of time, before finally getting the hang of it.
The story is definitely short for a acton based game, it can be finished in just 7-8 hours on normal mode, and theres not really a lot of rewards to be unlocked as you can find most the of the content on the internet. After completing the game, theres just no urge to go back and replay the game again.
If this game needs to be a must buy, it will need to have more content.