I don't think he is using volspeed to achieve what he claims (but are we sure he's not teasing?). With volspeed you can get to 45 but I don't have any desire for that, the standard of 32km/h is perfect imho.
Used it on a ride and so far so good, works as advertised and installation has been a breeze (I'm lucky I have the same exact Cube they use in their training video, so no surprises).