Is intelius.com really good and informative when it comes to wanting to know who's really calling you,where they live, etc?

I might register for this just to know exactly who’s been calling on my cell phone and sometimes he calls on private.I already got the age and I’m very shocked and I want to register for this to get full information on this person and where they really live. Is this the best one or is there another cell phone look up website that is even better?