Quick, ~ 45 min. without rushing, despite everything is in German drawing is pretty clear.
In terms of the product: The small electronic box recessed really does not seem reliable. Vulgar very fragile piece of plastic attached to two receiver (one under the seat and the other on the gear drawing). It is useful to count the number of times your seat passes the piece of metal and the number of times you pull the rope but if you seriously want to follow your evolution calculate your lost calories and heart rate, as saying it is better to buy a belt or a watch ..
For the rest, I have tried the product for an hour and at first glance I'm pretty satisfied. The seat is comfortable (at least for my morphology) it is quiet, no creaking if not the sound of plastic wheels turning under the weight of my body, but it's really not a problem. The draw is also extremely quiet and resistance plays a role.
The structure looks solid to do with time. Obviously it is far from the quality of the big gym subsidiaries but for the price I do not think we can have better.
So good quality / price ratio.