We just returned on Saturday from a 21 day Caribbean on Rotterdam...Our experience (YMMV) with the unlimited laundry was: -pre-cruise price of $147($7 per day), we decided to wait till onboard to get it so as to use OBC for this. We did the On board unlimited, price was $147($7 per day)...... (per Bag price was $20 per bag).. -This allowed us to pack less and just do laundry more frequently due to warm climate and alot of walking. To our surprise, we did about 13 or14 loads(full bags)