Thank you so much for your experience report! When I saw that MO2 now supports The Witcher 3, I was thrilled, because MO2 is my beloved Skyrim modding home - best concept, best workflow, best UI. How great would it be to mod The Witcher 3 with it too. According to your information (and the known aspects of the other posts), I will wait for about and continue to rely on TW3MM. I get along well with it and a change would have mainly aesthetic reasons. It's not worth the risk of technical errors.