I don't like the questionnaire part. I understand the premise, but I have two cheap legacy lenses, and when the questionnaire popped up, I just thought "nah. Don't want to take the time." It's a pair of $50 lenses. I'm going to list them at FredMiranda instead. Just some feedback. Take it or leave it. But as a seller, it's not working for me, but maybe that's OK.