I had a smaller rice cooker that I could leave rice in for 1-3 days and it stayed warm, moist and did not stick too much. Although I really enjoy this rice cooker, the rice does stick a little bit to the bottom of the pan even when i use a little oil and I cant leave the rice in too long on warm either. The steamer is great though. I can throw the rice and some vegetables all in at once and after about 20-30 minutes I have a healthy meal. The size is also convenient because you can cook for multiple people in a timely manner.