Yes! I didn't do the demo that others have reported issues with but the main game "worked". I could do quests, level up, fight and defeat enemies and talk to a few NPCs. Though after just a few quests on the first world you go to I got stuck not being able to complete a quest, couldn't talk to the NPC Anat, not sure if that might just be the end of content. Otherwise a lot of the game systems are not implemented, for instance when you level up you get talent points that you can spend at your class trainer to unlock skills, but the skills don't have icons, can't be equipped or used, and just don't do anything.

Edit: I'll just strike that part because I did just find how to use the skills, though they do still seems quite half finished.