As a nugget and when we COD guys lived onboard for entire cruises, I was in a 6 man. We actually had our on A/C so it worked out well when we arrived in the Gulf during Aug. This was the Connie by the way. My next two cruises, I lived in a 2-man. On the Vinson, I had a room on the O-2 level, stbd side, right next to a head with washer/dryer and a storage room. It was probably the most quiet room I've been in.
Like others have said, ship life is what you make of it. There should be plenty of time to workout, watch movies, do your work, sleep and excercise one of your arms :tongue2_1 I've always enjoyed it.