The sword does have power. I can feel it.
The game is short, but incredibly satisfying. I enjoyed every minute of it. The Six-Axis controls had a bit of a learning curve to them since it's a very delicate system, but once you get the hang of it, you'll have a lot of fun playing "Twing Twang". The only downfall in the entire adventure is that when you start-up/load a game or if you fail a mission, the load times are excrutiatingly long.
Still, the game experience in Heavenly Sword is incredibly stunning. If you own a PS3, then you must play this game. The creators have said in interviews that they have planned for this to be a trilogy, which is exciting news. I can't wait to see a sequel.
Also, check out the five animated episodes that delve a little bit more into the prophecy of the Heavenly Sword and back-story. Two episodes are available on disc (the other three weren't finished in time for the release). All five are available to watch/download from HeavenlySword.com