I kind of like the iOS settings application. If I want to change some settings for an application, I have one place I have to go to find it. I don't need to launch the app and try to guess where their designer decided to stick settings (probably buried deep in a hamburger menu). I don't have to guess whether a dark gray switch on a light gray background is "on" or whether a light gray switch on a dark gray background is "on" because the app's designer thought it would be cool to not use native controls.

I honestly wish this "central settings" app idea would spread to desktop operating systems.