I'm a cyclist who likes to complement cycling's lower-body workout with upper-body workouts in the gym or the pool. But since COVID I've been looking for an alternative I can do independently, either outdoors or at home.

Last spring I bought a barbell and some weights, and that helps. But I'd really like the same kind of interval workout for my upper-body as swimming provides.

I started looking into rowing machines recently and came to same conclusion as you - works most of your muscles, and provides both interval and resistance workouts. Seems perfect for the Corona Era.