I did a 2 day seminar that was run by the founder a few months ago. IMO it was excellent, very intense compared to my limited experience with KM and Eskrima. We used fairly realistic foam knifes and the 2 days heavily revolved around sparring drills and live sparring. An enjoyable and also painful experience. I'd definantly reccommend it, unfortunatly i don't have the time to train it regularly.