I got the device from Amazon as usual quickly. Thanks to the bad manual I could not reasonably assemble without the use of my collection and bolts without damage even with technical training device. If you have managed the rowing machine works as described quite well. The Ruderbewegeungen are the richtgen Rowing really inspired. However, since very quickly sounds have adjusted by enes somewhat unstable seat, I sent back the unit. Thanks to Amazon for the no quibble returns processing!