Absolutely terrible. Intrusive ads that interrupt gameplay constantly. A good idea for idle gaming, but ruined in execution through excessive ad flood; it's impossible to game idly as there is no offline playing and the game requires constant attention to turn off ads that hinder reward collection. Incredibly bitter experience. A good waste of time and nerves. Rather than attempt to "constantly improve" a functioning game clouded by ads that ruin the game, leave it be and drop some ads.