Having travelled on many ships over a span of over 40 years I find one needs to treat the ship and the itinerary as two distinct parts. So first the ship, and then the itinerary.
A: The ship
As a ship I found it had a culture that lacked attention to detail and as for organisation, well anything goes. From embarkation at San Francisco when a Princess organiser insisted we hand our bags to a porter who then demanded a tip to an absolute shambles at Buenos Aires it's a wonder we ever got our bags. In fact one got sent to a wrong cabin on joining the ship and a 'not my problem response' from customer services set the scene. The bag did arrive the next day though with no initial apology, so much for Princess' customer focus. It didn't get any better as the hotel director's recommendation of a Princess tour that wasn't even available to a shambolic degree of organisation on the part of the shore excursion people, and it was only by chance that we found out about the disembarkation transfer process after asking the shore excursion staff previously.