I used it about three times, but 5.5 cups was too big, so I stopped using it. There is black staining on the feet on the bottom. There are no noticeable scratches on the front, but there are fine scratches. I think it's relatively clean. There is no power cord. I checked the operation with another power cord I have at home, and it worked without any problems. No price reduction. - Brand: Zojirushi - Model: NL-DA10 - Function: Keep warm function - Features: 25mm thick inner pot