First, congratulations on building a professional and high quality machine. The product engineering and design is impressive and looks like it was built to last a lifetime with minimal maintenance. Completion assembly was straight forward, comprehensive and finished like clock work right down to the stainless steel Torx screws dipped in Loctite. I kayak, however the rowing machine is a new experience. I tried the erg machine, which I like, at the health club, but I prefer the Dynamic and would recommend it. Cardio and strength training at the same time is very efficient use of workout time. The machine footprint fits right in the living room.