Updated Review: This game is now pay-to-win. Full stop. It used to be a fun grind, but there is no amount of skill that can stop you from getting destroyed by someone who has spent significant sums in the game. Original Review: Fun, but buggy. Unlike many of the mobile games I play, it feels very responsive. Equally unlike most of the mobile games I play, I have to clear it from my recent applications multiple times per day (and occasionally a force stop is required).