The most traveled party is NOT an elite perk - it has to do with the number of days cruised - not the number of cruises.
The laundry perk is excellent - the charges appear on your bill until the end of the cruise on the sun class ships - there are no charges shown on the grand class ships. We went through over $300 in charges on a recent 10 day cruise.
The bottles on the one time bar setup can be exchanged for whatever you want - just ask your room steward.
Ron