I have only done one, but that was for 43 days from Southampton. Visited Madeira, Barbados, Curacao, transited the Panama Canal, visited Cabos san Lucas (Mexico), San Francisco (overnight), Hilo (Hawaii), Honolulu, Samoa, passed through the International Date Line, thenTonga, Tauranga (NZ) and Auckland. A planned visit to Bay of Islands (NZ) was cancelled, due to weather/season conditions. Apart from the way a very few passengers treated the crew, I could not fault anything about it. Indeed, after getting of the P&O Arcadia, we spent 21 days touring New Zealand and then flew home via 3 nights in each of Sydney, Singapore and Dubai. That showed us what great value for money cruising is. When we factored in car hire/public transport, hotels and food, the cost per day of our post cruise holiday well-exceeded that of the cruise.