My answer is a big YES!
From all points of view, if you join and participate to develop your presence in the new proposed social network by Google is, by all means, positive.
From the user point of view, you will be able to have access to an endless number of applications that are already integrated in Google’s platform and with which you are familiarized. For Google, at least in theory, it should be a lot more simple to put in your hands all its tools inside its own social network, instead of having to do it through Facebook or any another social network.
From a marketing point of view, your participation in Google + will serve to create competition, something that, in any text book, is recommended as positive and necessary for the growth and the democratization of any business sector.
You probably might have already realized that, at least in Facebook’s case, their growth has almost turned them into a monopolistic structure, and by that I mean, they can decide at anytime what is done and what not inside its platform. If Facebook decides, for instance, to eliminate any application, it will simply be done and that is that. Be aware, that is not bad! They have the right to do so as owners of the mark.
In any case, the presence of a strong competitor, like Google +, gives you the possibility to choose to work with the one that offers you the most extensive array of tools, resources, applications, and that is good.
If competing, Google +and Facebook will have to evaluate if the decisions they make will invite you to leave their house and go with their competitor, and that is also good for you as the user.
At the end, it is not a matter of one being better than the other, because it is clearly shown that Facebook, with its + 500 million users, is here and will stay for a good while. Instead it is a matter of recognizing something that goes in your benefit: If the two giants compete for winning your loyalty and trust, is good for you.
After all, in social networks what is important is you and how committed and engaged you can feel with brands, either one of them.
What about you? What do you think? Would you invite me to be your friend in Google +?