I attended the Defensive Pistol I and II courses by Protection Intelligence Strategies as one of many courses. I attend courses because they supplement my training, provide additional perspectives on defensive shooting issues, and let's be honest, every instructor has their specific approach to teaching, exercises, etc. As for me, Petr Mrňa as an instructor is easy to follow, presents everything clearly and logically, and the exercises were engaging, even though in this field, one can hardly bring revolutionary new ideas that would fundamentally differentiate from competitors on the market. Therefore, as a new entity in the market, he has taken on his specific teaching style and procedures that smoothly follow each other and are adequately practiced. Of course, it's up to each client how they keep working on themselves and practice after lessons. I can only recommend these courses, either as training, a return to basics for refreshing, or as a course for beginners. I wish you much success.