I had the chance to visit a Tench Class American Submarine. As you said, the living conditions are close and spartan. I'm sure everyone would agree that the crews that manned these vessels were a special breed. I think everyone who visits a Sub, especially a WW2 era diesel electric sub has an appreciation for the crews fortitude and dedication with regards to their living conditions.
Glad you got a chance to visit HMAS Onslow. Glad to also have you aboard Subsim and please post more.