Due to Genymotion’s fluidness and ease of use, it now becomes the most popular android emulator allows android developers to test their app directly on their computer.
However, it still lacks of Google Services just like Google Play Store, Google Maps, etc. on Genymotion emulator which makes us developer not be able to test those functionalities that use Google Services for example GCM Push Notifications or Google Maps.
Anyway it is not a problem anymore since there is some simple steps to do to make Google Services be avaiable on Genymotion with some help from CyanogenMod’s gapps.