We booked an Alaska and a Med cruise with an O rep, last week....we got 200 off price per person, reduced deposit of 250pp and 150pp OBC for each of them, since we are sailing on Nov 19....
We have 30 days to turn it over to an agent for further benefits....
Once on the ship, there are leaflets that describe the benefits of booking on board.
This may warrant posting a separate topic, someone may come up with the definitive doc.