Is Unity Networking good enough to make a real game?

I am wondering if Unity Networking implementation is enough to make an action game to play in Internet in the style of BeGone for example?. I know the creator of BeGone used Photon and others are using SmartFox or Lidgren for their projects. These solutions are even recommended by Unity docs.
So then, is Unity Networking useful for any kind of project?

Unity networking is good enough for servers similar in size to any standard fps game that has multiplayer. I’m using it in my project, and it works just fine.

Unity networking works fine. I will have proof once me and my brother finish our first game, but right now I will just say it works.