Alternatively, I have again chosen by Christopeit the Cardiff, as it has a flywheel mass and appeared to me also processed solid, as for example the Cambridge.
I tried it today for the first time and have a good impression. But the test is carried out probably in continuous use.
Currently I give four points, because the package arrived with a quite a plastic and polystyrene-Wust. And since the 10 steps actually more a 3 - 4 levels correspond system. Easy - Medium - Difficult. Where "heavy" probably applies only to untrained rowers.
Compared with the Cambridge but I am satisfied with the Cardiff. There is less space to accommodate also because of the folding mechanism.