Maybe it's 7003? That would be a cat 10 (making the cat 9 on deck 2 an upgrade).
We had a cat 8 on deck 7 on our first cruise (room 7002, right across the hall) and LOVED the location and the split bath/layout of the room but didn't feel like we needed the window. Because of that, on our next cruise we are booked in room 7501 which is a deck 7 cat 10.
Personally I am creeped out by being on such a low deck but that is just my own personal neurosis. Lots of people have reported loving deck 1 and 2. If you DO upgrade to a cat 9, most (if not all?) of the cat 9's on deck 1 have two small windows while on deck 2 they have the one huge window. I personally would stick with deck 7 but that's just me.
Lisa