The visitors chair is a bit hard as it has a scant amount of cushioning although it is comfortable for the period of a meal I've sat in it just to look out of the window to as the view is better.
Having done my last F alone I am looking forward to the novelty of dining onboard with my girlfriend in February. I'll probably end up sitting in the guest seat....good ol' chivalry
To get some idea of the seat itself have a look at a
photo album from my last F trip. Pics of cabin start at no.11