We actually prefer deck 6...it is as near to a balcony that you can get on this lovely ship!!! Yes people can walk past outside your window but not right up against it and you do have net curtains. We never had any noise problems at all, and it was lovely to just walk out of the door along the corridor onto deck and not worry if you've forgotten anything as it was only a minute to go back. My only tip would be to go forward rather than aft to avoid any vibration noise which some people complained about.
Thanks for your info. weve actually upgraded to deck 9 now so hope its good.
We were on the celebration in norway, in june on deck 6, with deluxe cabin... people can walk by outside the cabin window, there are deck chairs that people can sit on outside the window..
but we did not hear much noise from it...
the cabin was great and very comfortable.