I was still very skeptical with the Calibrierung because some recessions have pointed to difficulties, so we had our friends also explain - a lot of space around it, rather than decrease time schedule, ie may only times not equal to going draufspielen ... but all fear was unfounded, I believe, as do not even have needed five minutes for starting the calibration and then it was already set to go. For a non-experienced skaters on the board to keep even a real challenge the Gleichgeicht and the movements to do so that the tricks work. But it is well explained - unfortunately only in English - and you can always attend training sessions. After 3 different episodes, we made only times conclusion. Even really nice and I'm looking forward to more feedback our godchild :-)