I marinated three large chicken breasts in this marinade for six hours - I generally prefer to marinate my proteins 12 to 24 hours instead of the prescribed 2 on these recipes. I grilled them on my stove top using my le creuset grill pan (coated with olive oil spray) I served it with jasmine rice and steamed vegetables and my wife raved. We'll definitely make this again.
I'm not sure where they got the sodium amount on this recipe. I used 6 T of reduced sodium Kikkoman soy sauce, as called for. The label on my soy sauce says a single tablespoon has 575mg of sodium, which is way, way more than what this recipe lists.