For years iOS developers have touted the merits of the Simulator, saying that it makes their lives easier. As someone who’s developer for both iOS and Android, and been primarily an Android developer for several years, I’ve never cared.
When I develop, I use a device. I’ve often made arguments about how it better to develop on a device because that is what users will run your app on. The Android Emulator is good in the sense that it’s not a Simulator, but actually emulates the Android hardware.