Great idea! I used to be a competitive rower. When I was working at a gym during my studies I was actually talking with the managers of running some rowing classes (similar to spinning).
I think the main challenge with rowing machines (and the reason why we didn't do rowing classes), is that for beginners there is essentially only hard or off, i.e. it is difficult to adjust to different exhaustion levels. That leads to high frustration levels and is the reason why one rarely sees someone at the gym using the machines more than 5mins (and those that do are often former rowers).
So HIT is probably the right way to go.
The other challenge I is related to hardware. The reason why everyone is talking about the C2s is that pretty much every other machine is crap. The forces pulling on these machines are substantive and concept managed to make a machine that held up over time, unlike the others. So I hope you guys made those things sturdy enough.
I think the main challenge with rowing machines (and the reason why we didn't do rowing classes), is that for beginners there is essentially only hard or off, i.e. it is difficult to adjust to different exhaustion levels. That leads to high frustration levels and is the reason why one rarely sees someone at the gym using the machines more than 5mins (and those that do are often former rowers). So HIT is probably the right way to go.
The other challenge I is related to hardware. The reason why everyone is talking about the C2s is that pretty much every other machine is crap. The forces pulling on these machines are substantive and concept managed to make a machine that held up over time, unlike the others. So I hope you guys made those things sturdy enough.
All the best, I hope you succeed!