95-Points by James Suckling.
A juicy red with blackberries, blackcurrants, chocolate powder, spices and cigar leaf. It's medium- to full-bodied with currants, graphite and crushed stone on the palate. Some bark and mushroom notes. Chewy but not heavy. A solid and polished wine that shows old-vine character.
The 2020 Red Blend Heritage Marques de Casa Concha combines 84% Cabernet Sauvignon, 12% Cabernet Franc and 4% Petit Verdot, aged for 16 months in 40% new barrels. 
 
Marques de Casa Concha is a Chilean winery and premium brand of the largest South American producer and distributor, Concha y Toro. Casa Concha is known for single-vineyard, estate-bottled wines from different appellations throughout the country, the most prominent being a Cabernet Sauvignon from Puente Alto.
The brand was launched in 1976 by Concha y Toro, itself a historic winery founded in 1883 by the Marquis Melchor de Concha y Toro.
The 1972 Cabernet Sauvignon from Puente Alto was the first wine released under the Marques de Casa Concha label and has continued to be the range's flagship. It has been received well by critics, especially vintages from the early 2000s onwards. 
In the late 1980s, new varieties were introduced to the range beginning with a Chardonnay and a Merlot. Marques de Casa Concha sources the grapes for each wine from different DOs with the stated goal of expressing the differences in the various Chilean viticultural regions.