Nostalgic. Don't remember many places with floor seating but this was one of them. If you don't feel adventurous or just hit the gym before going you can just sit on a chair in their other dining area. The floor seating is heated in the winter.
You get minimal side dish, kimchi and radish only, though the kimchi was pretty big they had to give us a pair of scissors. I would go for their spicier dishes (army stew, rice cakes) as they were the ones that stood out of the bunch (don't go for chicken cutlet, just go to Galleria if you really want some). Purple/brown rice option is a dollar extra, so no.
I went several times and every time the food and service was good. One of the male server even went above and beyond separating our bills into six different tabs with some complicated math equation halves thirds quarters.