If you are a competitve rower or a crossfitter, their is no substitue for the Concept 2. The Concept 2 rower has been around since 1981 an can be found in Rowing Clubs, Health Clubs, and CrossFit boxes. While the machine is built very well, the simple design has not changed much over the years. In our opinion, the main reason for their popularity is more for the computer output rather than the feel of the machine. Their computer is the universal language for users to compare and contrast to others. Concept 2 offers two different frame sizes labeled the Model D and Model E with two different Monitor options. The most basic package would be the Model D with the PM3 monitor. We stock this model in both the light grey and black frame.