Absolutely love the visuals of the game. Comic book style art and wonderfully animated Plus Ultra attacks! However, the rate at which you get currency is unbelievably slow and almost non existant once you've done everything. The pity system is ridiculous. 15000 gems needed to guarantee the character of your choice when I was only able to scrape up 4000 before I hit a wall. Less than 1% chance to get the banner unit, sometime even 0.23%! Absolutely unsustainable.