After sailing with Royal Carribean 17 times we saw a South America itinary and chose the other side, Celebrity Infinity.
We used the pre cruise hotel and transfer that was great hotel and slick smooth transfer of approx. 1 hour 30 min.
On arrival there were orderly lines and clear instruction to leave luggage. A short walk to the pre boarding hall and booking in process. Plenty of seats, water and soft drinks and special signage for elite and above passengers.