I also played this game at CNE and this was a blast to play. Replayed it twice and beat the boss (Lamia is a goddamn amazing character).
Better tutorialization of mechanics, as well as the explanation of certain card mechanics and terminology that are more 'esoteric' to the genre is necessary in the future, but in its current state, it is a VERY scalable product that can be made into a much better game down the line. I'm looking forward to an expanded version of Dungeon CEO in the future :D