Carnival54

First, crew and staff are excellent. 

Unfortunately, the ports (except Cosumel), are lacking the infrastructure to handle the thousands of people who disembark. Realizing the tourism dollar is a much needed (read "only") boost to their economy, it really does no justice to the people on land or on ship to disgorge these huge numbers of people. Definitely would not return. 

Carnival has instituted a "fast pass" for boarding, which is fine if you wish to pay even more for your ticket.  However, queuing the handicapped people first then trampling them with the fast passers is totally unexceptable.  90 year old parent was hit with luggage until I physically protected her.

Will definitely be searching for another cruise line.