Is it safe to give CLER my SS#. I'm just not sure. Is it legit? Anyone have any experience with them?

It's always a matter of personal choice. I have been with them a long time. I feel okay about it. Nothing is 100% safe.

I've been doing their surveys for a while now too. I was also hesitant to give it up, but felt better because it was Harvard. Never had an issue!