Help about Google play realtime multiplayer

Hi people, anyone familiar with realtime multiplayer game? I need some help.
I have a game like Counter Strike for android using Unity 5.3 engine. I am making it multiplayer. Is Google play realtime multiplayer good for it?

Try this tutorial

It’s been late
but here is the good multiplayer tutorial using google play games

and a good Asset too: Easy Google Play Service - Multiplayer | Integration | Unity Asset Store