so i searched for a while for a good all around kettlebell class that actually cared about proper movements and for the clients body, and reading about vince and david after the being recommended by one of my NASM educators they sealed my fate . once i took the level 1 class i was hooked i learned way more than i excpected from mike spiegle he was great, and meeting the ceo david and i had a few concerns he was emailing back and forth and actually cared and was concerned and addressed all my issues asap i knew these guys were elite and know in october i will take my level 2 class, what genuine men these guys are..