I'll have to check my rice cooker.... Nice call on the time. Mine's near the end of its life so might have to up my steam time.
They are definitely less hard to make than they seem. I suspect it's one of those things that's easy to do, difficult to do well.
All about this. My list of dishes I can make generally fall under this category so i can get the most mileage out of devoting my time to making them over the course of cooking. Best example was taking an extra 30min to knead my latest sweet bread by hand made all the difference in its fluff.