We (Married couple in our 30's, no kids) choose this cruise because of the itinerary, because of Antarctica. Because we really wanted to see penguins in the region where they belong. And this was the only affordable way to do it.
It was our first cruise ever. We know now that cruising is not our favorite way to travel, and I'm sure we will wait at least another 30-40 years before we ever book a cruise again, but the nature, the surroundings; Patagonia, Falkland islands, Antarctica, that made it worth it!
We took the public bus from our hostel to the cruise port. Public transportation is very easy in Buenos Aires, just get a Sube card (at a subway station), and you can use the bus, subway and trains. One card can be used by more then one person. We used public transportation a lot there. It's cheap and easy.
Although the bathroom and tv could use replacement, it was a very good cabin. The promenade deck is easy to acces, but you are not directly next to the doors, so you don't have noise from slamming doors. The promenade deck is a nice place to spot all the animals en nature, and you can acces the bow of the ship from this deck. Sometimes you could hear some music from the theater above, but not so loud we could not sleep trough it. We were happy with our choice of cabin. It's partially obstructed view, but its not that bad. You can actually still see a lot.
It's a nice city. We stayed here for a while before the cruise and took our time to see the different parts of the city. Get a sube card for public transportation (you get it at a subway station). You can use it for bus, train and subway and you only need one card even if you are with more then one person. We used it to get to the different parts of the city by bus and subway, and we took a train to the tigre delta.
The city center is an easy walk from the ship, it's a nice city, we liked it more then Buenos Aires. We just walked around, did some sight-seeing and shopping.
The bus from the port to the city center has not enough capacity for the amount of tourists. The city is nice, but not really special. We went to the bank to get money, to the viewing point and we went to the cemetery. We walked back over the beach and boulevard on our way back to the busstop.