"The 2006 Chateauneuf du Pape Reserve des Deux Freres is one of the two or three finest wines of the vintage. The quintessential Chateauneuf du Pape, made from 100% old vine Grenache aged in one-, two-, and three-year-old small barrels and larger demi-muids, has a black/bluish color and a remarkably aromatic nose of scorched earth, ground pepper, smoked herbs, meat juices, and oodles of blackberry, cassis, and sweet cherry fruit. A wine of extraordinary intensity, density, and power, but with sweet tannin and relatively low acidity, this wine will be approachable in 2-3 years and last for at least 20-25. These are marvelous wines. (...) Their 2006s are among the great successes of that vintage, much more charming and up-front than the 2005s, but concentrated."
Source: Robert Parker, Wine Advocate (173)