Karate training must be a very serious activity to avoid injury. All the people acting in the videos are very strict in usual training, but these are rare cuts to find their relaxed face! Thank you for your help for my filming mates.
Most of the techniques in Ippon Shobu are jodan/chudan zuki. For people who are used to sport karate (Blue vs Red) might feel short of fun. I like the sport karate too and hope this will be included in Olympic events someday. But I think the longer you learn karate-do, the more you will be interested in this 'Ichigeki-Hissatsu' principle.