Awful, awful, awful. Half the ads are enlarged so much that you get stuck and can't do anything other then exit the app and go back, you lose whatever bonus you were trying to double though. It's a clever but absolutely awful thing to do. I've sat through 18 unity ads already not to mention all the adchoices and then video ads too in total over 40 ads since yesterday and I just feel let down, watch an ad to double a reward and immediately get another ad that forces you to close the game