The concept is interesting, but somehow it's not enough. Broken mechanics, the healing system is terrible, you can use as many potions as you want it won't be enough. The thing is, every time you loose a fight, you loose money, so you can't buy potions, without potions you can't win a fight. So you just loose again and again. The only way to avoid this is by going back to earlier levels, and play them again and again until you get enough. Then you go back to the level you were, to get killed again, and just start right where you were.
The game get even more boring than a 10 hour job, bus ride home, time to eat, sleep and doing it all again the next day.