Honestly I like the plain fluffy white rice better than the beany rice, but bean-rice is significantly healthier. I guess it depends exactly what you want to put in it, but I use slightly less rice and a cupfull of beans mixed with whatever else I want in it. Then I close the rice cooker and cook as normal.
I've never cared too much for soy sauce, but it may be because so many of the side dishes I eat are made with soy sauce and have the flavor already added in. If you go to a good Korean restaurant, they're likely to bring out three or four side dishes (out of the million!
) that were made with soy sauce. Two that come to mind right away are chopped potatoes and fishcake.
I *really* got turned off of soy sauce some time ago when I read about some Chinese soy sauce being made with human hair. I don't use Chinese soy sauce, but it creeped me out enough to get me away from all soy sauce altogether.
I'm looking forward to trying horsemeat in Oita next year... I've read it's their specialty.