"Let's Talk Study" feedback

I realize I am responding to my own post, but am doing so in the hopes of hearing from more people. I am doing this study with one other person at the moment in order to familiarize myself with it, and yet "feel safe" to share. Is anyone doing this in a group of more than 2? Did you make it an open group, or did you pick out your attendees in advance? I think the questions in the study are well worded, but I have a lot of fear of opening a can of worms and having things get negative and out of control. But maybe this is an unbased fear? I'd love to know if anyone else who downloaded this study has dared to do it, or not, and why and how. Thanks.