I don't have it and I won't activate it when we buy our SAAB in a couple of years.
The whole idea that someone will know where my car is at all times is far from comforting! It's downright Orwellian. Not only can someone tell where I am, but they can eavesdrop on my conversation! Just in case you think I'm nuts, take a look at this article:
Court to FBI: No spying on in-car computers
The FBI actually eavesdropped on someone using OnStar and the 9th Circuit Court told them they couldn't do it. By the way, the decision is binding only in California, Oregon, Nevada, Washington, Hawaii, and other states that fall within the 9th Circuit's jurisdiction.
The other reason I don't like OnStar is the fear-mongering advertisments. "Oh! Please Help Me!" And the calm OnStar employee helps through a heart attack, or an accident or some other tragedy. Of course, all those people would be
dead without OnStar! At least that's what the ads lead you to believe.
I guess if you feel safer with your OnStar, then enjoy your little toy. I know that I will have mine disconnected when I buy my car, even though we get 1 year free.