[1][3] Trains are run by private company Casimiro Zbikoski S.A. under an operation agreement with State-owned Operadora Ferroviaria Sociedad del Estado (SOFSE).

[1] The train crosses the San Roque González de Santa Cruz Bridge which joins the two countries together and has an average journey time of 10 minutes with a 30-minute frequency.

Those railcars had been previously used in the binational service Tren de los Pueblos Libres that joined Argentina and Uruguay,[5] having been active only for one year.

[6] With passenger numbers increasing rapidly after the opening of the service, the Argentine Ministry of the Interior and Transport stated in March 2015 that it may have to evaluate adding more rolling stock and extending the length of the platforms.

[7] On the other hand, the Government of Paraguay stated that they had no objections to anything related to the service, blaming the Argentine authorities for the suspension of the train.