The unit was packaged very well with us. Set up and connection had worked well. Working for 1 month for the device. Started cautiously. There are no back problems occurred, although I am biased in that direction. Despite rear drive, there have been no problems with his knees. Bin 1.86 m tall and weigh 100kg. For this vote, the distances. The unit makes a solid impression. There are slight running noises. For music with normal speech is heard no more noise. If the noise is loud, I'll probably Regrease something.