Varoetals: 62% Cabernet Sauvignon and 38% Merlot
98 Points James Suckling 
This is a very refined, polished Cos with superb finesse and length. Medium-to full-bodied, very fine and persistent. Really long with beautiful tannins. Rich, but fresh and linear.
97 Points Decanter  
You need to take a little time to let the concentrated flavours seep out, this is a long hauler. The tannins build slowly but surely through the palate, sombre and serious right now, particularly for an estate that is known for its exuberance. The opulence is there if you give it time, and as the tannins elongate and relax, richer notes of bilberry fruits, toasted cedar, salted chocolate, turmeric and black pepper spice arrives. Harvest September 10 to 24. A 3.9pH is the highest since 2003, but any threat of low acidity is balanced by high tannins, and relatively low alcohol
97 Points Wine Advocate
The 2020 Cos d'Estournel showcases a breathtaking harmony of richness and freshness. It is powerful, with expressions of black fruits, nutmeg, black tea, and spices, yet balanced by a lively minerality. With its opulent sweetness and unprecedented energy, this vintage exemplifies the true expression of the terroir.
96 Points Wine Enthusiast
This wine's complex structure and powerful tannins are shot through with freshness. It is already impressive, the spice and black fruits in harmony with the texture. The wine will age well.