It's been used pretty much every day for 7+ years since I purchased it.
Every night I put 130g steel cut oats in, 400-420g of water, set it to cook for 45 mins and be ready for when I wake up in the morning. I'll then add 25g protein powder, sometimes a few berries or sprinkle with seeds/nuts. A nutritional power house.
I find steel cut oats more filling, a lot more substantial with ground oats more goopey. Steel cut oats are normally a hassle to cook but it's set and forget with the rice cooker. From what i've read I also believe the fact they sit soaking over night in water also is breaks down the starches which helps nutrient absorption.
Does wonders for digestion and satiety. Everything runs like clockwork with them. If I don't have them for a few days, things get irregular and a noticeable difference in satiety for the rest of the day where i end up snacking as feel hungry after meals.