Somewhat grindy, even with a fully öpaded swod I didn't get past the intro boss, but that might be due to my ineptitude.
I did manage, however, to make a config where the fight bugs out. He gives is talk and then the game stops.
Save Loadout didn't seem to work properly as well, loading gave me an empty config.
For the main game-play my controller worked fine (although attack was a different button than the shop-keeper told me), but unfortunately not everything can be done with it...
Despite some shortcomings this one looks super polished, great graphics and sound.
The shopkeepr and dummy could use some movements, though.