The Catena family are pioneers of Mendoza. They have carved out a fine empire based on making quality wines from the region that put Argentina on the wine map. Since their large land holdings give them access to some of the the great sites of Mendoza, the resulting wines are outstanding. At the lower level the wines are probably a bit simple but not a bad wine is released here. The Catena Mendoza Chardonnay are great. Most of all I suggest you taste the Malbec based wines because they truly stand out.
Without question the jewel in the crown of Argentina. A large region. Lots of young and innovative producers have moved in and are slowly mapping out sub-regions and single vineyards of note. Look out for great Malbec but lots of experimentation means you can find all sorts of wonderful wines.
The grape that you can plant anywhere, in any climate and do anything to and it will still taste like an OK wine. When people hit the sweet spot of site, climate, cropping and winemaking, Chardonnay becomes a magical wine that will age gracefully but charm you at any age. Chardonnays can range from cool climate lean and citrusy to warmer climate tropical and overt. Oak and lees can add flavouring as can malolactic fermentation.