I flew with LanChile in 90, on a 707, from Tahiti to Easter Island and Santiago, and return .
Even if aircraft was old, and IFE limited, I have notice the good level of maintenance. In addition, food was ok, and staff was very friendly.I broke my leg 2 days before my departure, and didn't inform them. They took care of me during the flight, making sure I would have enough space. They allowed me to stay on board during the IPC transit, and arranged wheelchair for me at SCL.
I flew Lan again in 95, on domestic routes. once again, it was old plane (the classic 737-200), very clean and well maintained. My first flt was Calama-Antofagasta-Santiago.
I was in Economy. First leg is around 25 minutes long. And I have been very surprised to get a drink service (any type of drinks, including alcohol) . Then, after the short stop at Antofagasta we had a new drink service, followed by the hot meal. And for the hot meal, choice between meat and fish !!! All this in Economy, on a DOMESTIC flight ....
I you add to this very good service the very young and modern fleet of Airbus, I am pretty sure you will enjoy your flight.
Ecoute les orgues, Elles jouent pour toi...C'est le requiem pour un con