Yeah, I'm with Clint on this. I love these CDs for pushing cardio but you won't learn any technique per se. You may improve reflexes and fluency of certain combos but you need to keep training skills specifically.
As an example, my left hook went to shit when I was mostly doing these workouts just cos I was trying to get it fast & the whole idea of Bas's workouts is to tire you out, therefore technique can become sloppy.
I love these workouts when I'm struggling for motivation - Bas's shouting just keeps me going, oh & be sure to mix them about as they can get too easy once you get used to a particular one.
That's not funny, that's not funny at all.