I have known Mariusz for 14 years. He is a very unique instructor with very deep knowledge of our art (Taekwon-Do) and a very professional approach to passing his knowledge forward. He is capable of dealing with adults and children with the same ease and build great martial artists.
Definitely a person not to miss if you’re looking for a coach or instructor.
ITF Taekwon-Do Master Instructor,
President, ITF Taekwon-Do Finland