When I first got back into Tabletop RPG/Traveller it was because of the variety of tools out there. I figured it would make it easy to find players and play games without having to be in person.
The main problem I had was much of the software does not adequately support finding players or if it did, there were not many Travellers who were using it. Part of the problem is that there is so many different tools available. Even if a group of people found each other on a forum, like here, they all had different software they wanted to use or try. I grew tired of spending more time creating accounts, installing, configuring, tweaking and testing numerous tools than actually playing. All the games that finally did get going ending up dying out pretty quickly for a variety of reasons, many similar to the scheduling and other issues that befall in person games.
I had one success with real time online gaming. A text chat, not voice, game that lasted a year or so. Even that game went through more than one chat software program at the beginning.
So no, I have not used Hangout+ for anything at all but I'd like to hear more detail about how it worked for your gaming.