The processing is really under less than optimal, particularly annoys the detection of cheaply stamped screws. However, the biggest criticism is undoubtedly the incredibly bad instructions. To verbauende small items (screws, etc.) are not about increasing but permanently unrecognizable represented small and labeled with a number, which you have to look forward in the register. Thus one knows for small parts in many cases which parts are really meant. Complicated steps are poorly represented in perspective and short, simple but clear expatiated. Did quite a bit but never assembled with such an abysmal guide where you are ultimately better off at einiegen steps to consider themselves how best linked parts. In manual segment so Christopeit has considerable need for improvement. Otherwise, the price / performance ratio as well as in the cross trainers fits very well.