The many reviews have irritated me. They were in total but helpful for my decision to buy the device. Short delivery of your order: Congratulations to Amazon. Assembly actually very simple. What is missing is a side note: Which of the two feet is one forward and what backward. After some trial and error I've done it right. The functions are easy to learn. Too bad that the display does not light up. Actually, the moving parts are very quiet. The flywheel or something touches on the cover and I want to see how this can be correct. Back Send I am the ergometer so terrible. I am already a few years old (77), have a relatively large technical Verständnisb am but damaged heart with "built-in" Defibrillatior. Train Inge programs are for me not necessary but a good heart program. This provides the AL2. Handlebar height, seat adjustment, seat adjustment and pedals are the main components, which are very good. Even the pulse rate appears almost right. What's wrong with that if the pulse instead of 89 only 87 or 92 indicating if he really is perhaps at 90? For me it is dangerous when the pulse goes toward 180 and adopted at only 100 watts. In summary, I can say that I see a good Graet bought that has a few "negligence". I will not speak of mistakes. But 5 points would have to be good. 4 points are but also what !?