TGGD is, mostly, boring. No, actually, tedious. In that "oh, my, ghu! another train-wreck down the rails of narrative imperative!"

I have had some pretty good TGGD moments, though (discussing the Christian view of God with a chap who converted to catholicism from protestantism, spent a while deciding that, no, he DIDN'T want to become a monk, after all and then went down the route of theological studies, with a possible view of becoming a priest).

However, that was, essentially, a mutual exploration of stances on ontologies.