We were in 7002 (right next door) on our last cruise and LOVED the location. It was very convenient by stair to the pools etc, and if you are a couple without kids, you are on the more "adult side" of the ship with the adult pool, spa, and clubs all being forward. It's very quiet and since you are at the end of the hall, no one will be walking past your door. I love being up high on the ship.
I don't know about seasickness since I never have gotten seasick in my life, even when I was on a much smaller boat in much choppier waters. In fact, the motion of the ship has the opposite effect on me and makes me very sleepy and relaxed. I slept like a baby every night, and often during the day on a lounge chair!
I did not really notice a difference in motion in different parts of the ship, though I tried to tell. The first night when lots of people were getting seasick, they were getting seasick midship and on lower decks as well as forward and upper decks.
Hope that helps!
Lisa