We stayed in 7070 on a western cruise in June, 2004. Great location and we enjoyed it a lot. Quiet, with only the occassional hallway noise, but certianly nothing to worry about. There is no stateroom immediately across the hall.
Close enough to the midship lifts. Convenient to most areas...only 2 flights down from Deck 9. Verandah is fun and relaxing to sit out on at night and just watch the sky (especially distant thunderstorms). Never heard any noise from 7068 or 7072.
We would have rebooked it for our upcoming September cruise, but someone beat us to it, so we're in 7072 this time.
Ask away if you have any specific questions!