Have you ever cruised in a staff cabin?

One of the questions I get asked a lot about cruising is 'where do the crew sleep at night?'
On one memorable occasion I remember one person asked me if the crew went home at night!
The easy answer is that staff and crew cabins tend to be below the water line at the bottom of the ship; well out of the way of the guests.
The staff quarters tend to be a lot smaller and more crammed in than guests cabins but can be quite nice still.
A lot of guests sometimes show an interest in crew cabins and want to see them but they're normally told that the cruise line won't allow this.
However after a phone call to a cruise line this morning I've found out not only can you view some crew cabins you could book a cruise in one if you wanted!