I had an S class with a cream interior. Downside the matching seatbelts became very dirty and impossible to keep clean over time. The leather centre armrest picked up a lot of dirt too.
Thanks for all the opinions, I'm still in the black is too dark camp.
However the cost difference to select the AMG Sport over the AMG Sport Plus then add the costs of leather £1350 is too much. The E Class seems a much better options list, I think the Avantgarde gets leather as standard.