Rowing is a great exercise, one of the best for strengthening the major muscles of the back. In fact, if your average weekend warrior invested as much time in rowing as they do with bench pressing, we'd see far fewer shoulder and rotator cuff injuries. But that is a rant for another time. Rowing exercises develop the traps, rhomboids, lat, and erector spinae muscles of the back (just to name a few).
Most people who start kettlebell training do so in part to strengthen their core. Performing renegade rows are a great way to incorporate the super stiffness needed to strengthen the core. When attempting them, here are a few tips:
1) Do them early on in your routine before you are tired
2) Use a bell with a large bottom (at least a 16kg) so that they remain stable
3) Be certain to keep your wrist straight, otherwise you will do a face plant
4) Be sure to put your weight directly through the supportive bell when you row, and not on an angle to the handle. Again, doing so will cause you to head face first in the floor and possibly break your wrist.