Bests & Worsts Reviews from Amazon

This rower seems to be well built and very sturdy. However, buyer beware, the design of this machine contains one major, VERY IMPORTANT flaw having to do with the resistance adjustment. The resistance is controlled by tightening knobs on the side of the machine at the bottom of each individual piston. Loosen the knob and you are able to move the bottom of the piston up (to increase the resistance) or down (to decrease the resistance). Regardless of how much I tighten each knob the resistance always loosens up during my workout. Sometimes one side will come loose before the other, producing an uneven workout. Eventually both sides loosen and the workout is much too easy. Which begs the question... Why didn't Kettler catch this problem during the testing phase of this product? I am extremely disappointed and would not recommend this product until Kettler comes out with a fix or different design with respect to the resistance adjustment.