Android development is fairly simple, but a good simulator that comes close to the iOS simulator experience was missing until now, but with GenyMotion the wait is over. Installation is easy, and you can set up a lot of different emulation environments. The advantage of genymotion is that it creates a real virtual android device, so whatever you are developing with (android studio, eclipse) sees the GenyMotion emulator as a “real” connected device.
This means no issues with the overly complicated android emulation manager. And you can use “real life” smartphones like the nexus 4 or samsung galaxy from their phone database. Smart!
In Android studio, the emulator is shown in the devices list, which makes life easier: