Yes the odd-numbered cabins on deck six all are well forward, have balconies, and are vibration free (well, within normal limits). They have been upgraged (up-priced?) from F to E. Unfortunately, the even-numbered cabins on deck six aren't balcony, but instead have those weird windows overlooking a service deck, but still are vibration free. But as far as view is concerned, they are (IMO) the worst cabins on the ship.
Thanks,
Richard