Originally Posted by
bermyandy
So what is that space where those seats would be? i.e. if peace and quiet is my focus, should I choose that side or avoid?
There is a space behind and a compartment with crew rest bunks behind that. It used to be 13F with OF seats, but with NF seats it is 12F as they are slightly bigger seats.
See also:
http://www.flyertalk.com/forum/25739403-post555.html
The 12F aircraft are typically used on longer routes.