I tried an Indo Row class for the first time summer 2010, really enjoyed the experience and brought a rower home thereafter. We have a water rower at our studio in Toronto and some challenging workouts can be created. Challenging workouts that energize you are part of making life good. Here is the my most recent workout on the water rower:
http://www.befiteveryday.com/a-water-rower-workout-only-500m-4-times/