Soldato
Rowing is my bag, although my JTX died a few months back and i've been eyeballing a concept 2 lately - even though I can't afford it, my CC is calling.
You animal! I can happily run/cycle for hours (or at least i could when before my fitness was higher), but put me on a rower and 5k absolutely wipes me out!
I'm debating a water rower when i'm in Spain. Hoping that if i can build a shed with a big side window with a great view it'll be lovely and it'd be nice to hear the slushing water sounds as i expect i'd use it for longer sessions vs the benefits of the Concept 2 for intervals.