I like the changes, but I'm disappointed that the game itself is basically the same (ie: the monsters, same bosses, end bosses, etc). This should be presented as an update, not a brand new game.
My only complaint is that muting the music must be done each game. Unless it's something in my settings that causes this. The game itself is great. Curse does not seem too powerful... I've won plenty of games where the computer cursed me 2 or 3 times and vice versa. It's challenging, and sometimes luck of the cards does come into play...