I've had my fair share of them. I think I preferred the egg salad ones, since it was all ふわふわ.
Of the many disturbing baked goods, the ones that disturbs me the most are hamburgers, just sitting there packaged and not refrigerated.
EDIT: Japanese/Korean bread is really nice, at least to those of us who grew up on rice. There's a certain fluffy yet dense quality to it that you don't get from other breads.