I'm very disappointed that Apple is embracing advertisements in it's other iOS apps as well. For instance, I see interstitial LendingTree ads in the news feed on the Stocks app. Integrating ads into your first party applications always seemed like a Google or Microsoft thing to do, not an Apple thing. I suppose I could look for quality, advertisement free, non-subscription, alternatives on the App Store but that's like finding a needle in a haystack.
I’ve been testing this new ad format for two days now (for my indie game). There is no way to target keywords, only gross demographics like gender and age range. So it’s yielding very poor results compared to keyword ads. Probably only useful for massive campaigns by apps with very broad appeal, not niche apps.