Actually, Aerolinas Argentinas is quite a good airline.
Their last fatality was in 1970.
http://www.planecrashinfo.com/rates.htm
But this does not mean that the Airline is very safe. Their operational Procedures for example are unknown. Their record is near perfect.
Their Fleet is ultra modern. They operate B747-400, B737-500, B737-700, A330-200, A330-300 and MD-11 (B717-200s).
http://www.aerolineas.com.ar/arg/main.a ... dIdioma=en
The fleet is all Glass Cockpit.
So all in all, I wouldn't have an issue with them on face value.