I enjoyed it at one point. Since there are no daily log-in bonuses you get stuck with the same cards for quite a long time. I am now stuck on a boss for around 3 days. When you want to level up your character the only way is to further progress in the game but you can't replay previous fights to get more advantage. (level up cards or gaining any materials) I will uninstall the game and let it rest for a while. Maybe at a later date the game will be improved.