I started using it in the beginning, but then my feed was filled with nothing but spam, "Read my new book!" "Look at my new project!" It seemed all that and none of the social friends aspect of Facebook. In fact, I found it seemed to have a very "you scratch my back, I'l scratch yours" kind of vibe. People would only comment or +1 a post if you had recently done the same to them. I must still be active because every once in a while I get a notification that someone added me. Maybe I'll give it another look, but unless its gotten more friendly, I probably won't use it consistently.