I played the demo and enjoyed it a lot! The gameplay is very fun and I enjoy how the player is quick and nimble while moving but slow while attacking- it makes you feel like you're using a powerful macuahutil.
If there is one thing I would like to suggest, it would be to add pots or barrels that to break with your weapon. It's a small thing, but it's kind of fun to have random things to smash between fighting enemies.
Will definitely be buying this once it's released (and hopefully translated)!