Way too many ads, at the bottom of the screen and before every game. Most aren't even skippable. Then they eventually make you pay (in game, but still) currency for the blacked out tiles. As someone who can't see depth this makes the game impossible to play. Also, I eventually got a ton of gambling ads and even sexual ones! The ads increase in frequency the further you get, so you get baited into thinking there's not many at the start. And then the standardized response to critical reviews.