The scooter smells something unpleasant while unpacking, but one has never directly fed to the unit. The flies after a few days.
The annexed guide is not worth much-unfortunately. I had to watch some YouTube videos, and also here at Amazon that use video. The small pieces of paper does not show much, I did the first exercises done wrong, because I could not cope with it. So it is not worth much put - rather look after demonstrations on the Internet.
Otherwise, I can not say much because I do not very often came to practice and now had to suspend also have 3 weeks action. But for the money it's probably still good support for exercises on the home soil. Although the excess fat might not be spirited away on the belly. as more and more work to hear than to rely on 1 device.