We had these cabins on the Magic a few weeks ago.
Loved the location - slightly aft, so you can use the aft elevators, which are not as busy as midship.
Down the hall for laundry - not hot / humid outside of these cabins, but you can easily see when there is a machine available.
Not too long of a walk to the "not so secret" deck 7 overlook.
Few flight of stairs to Topsiders / other aft restaurants.
For us, 6602 was really creaky. It looked like others complained before us, as there were wedges of wood jammed between the ceiling panels and crown moulding. It didn't work - the noise kept us awake if we weren't using our earplugs.
Hope to Help!
Have a great trip!