I have the F-Bike now for 15 months and am basically very happy with it. I use it about 3 times a week. It is still run softly. The difficulty levels are certainly not for-trained. I am concerned, however, more to the motion, since I have a dodgy knee, which must not be heavily loaded anyway. The only weakness was from the beginning the display. I always had to remove the batteries after a workout, or else they were next time empty. I thought that was not so bad. After 14 months, the display was no longer legible and I complaining Amazon. I am absolutely delighted, the day after the complaint I had the replacement device (complete replacement), one day after the old device was then picked up by Hermes, because I had not the packaging. The new device is now working properly again incl. Display! Strong buy recommendation for casual sportsmen who wish to have some movement in front of TV and not have so much space!