I’ve only spent 5 minutes with it, so I can’t speak to how strong of a social networking offering Google+ is. But I can say: what impresses me most is that Google is publicly proving that they are not afraid of failure.
How many attempts has “the Goog” made at social networking? Wave, Buzz and Orkut, at least. And those are the ones that were released publicly. Google Wave came and went pretty recently; they didn’t wait to try again. You also can clearly see where the the lessons and successes that came out of these failed attempts.
Don’t be afraid to try and fail.