I cruised Celebrity when they first launched 1989. They had bought another cruise ship. It was squeaky. I do recall an exceptional wine list.
I want to cruise my 6th continent for a 'big birthday' and chose celebrity because of date and price. I flew into Buenos Aires a few days early to hedge my bets. I enjoyed exploring the city on my own and with local tour operators.
Check-in went quickly especially as Costa was checking in as well. My mid-ship, inside cabin was what I would expect. Small and the right size for one person. It is clearly a well-used ship and it takes daily upkeep by staff.
It's small and old. Like Vegas, they don't want you to spend time in the cabin.
I arranged for city tours via a private company.
It's a fun little town. I cancelled my pre-paid tour because they had moved the arrival so later.
Bopped around on my own. City was closing up at 1pm for Carnival so I went back to the ship early.