@Kostya,
Buggier - I'm not sure if iOS is buggier than Android given the current rate at which Google has been throwing out crap updates ever since 4.4.X. At least, we can be sure the native iOS apps do work well while native Google apps are a different story.
Slower - It's just that iOS has slower animation scale making it feel slower than Android besides iOS is still running on 2011 Android hardware per se yet it can easily challenge the self proclaimed uber-Android devices to date.
Limited - Yes, this I give you.
Annoying - Yes, but doesn't Android also come with its idiosyncrasies?
Anyway, the debate between Android and iOS is never ending...but I still Android has a long way to go to reach the levels of iOS. And I so wish they didn't implement the stupid doze feature....Hell, what was wrong with Kitkat? It was the best update from Android to date and everything since has been downhill.