I don't like the monetization of outright buying characters, makes it less fun as a fully pvp game when others can purchase upgrades directly. I don't like the chests either, taking so long to open and no free way to line them up to open in order. When your chest slots are full it feels like a waste of time to play the game.. wait 10 hours to open one chest and then get a chest from your next battle and are full again. Game clearly made as a cash cow, but the battles can be fun, sometimes.