94 pts - Wine Advocate
Not as concentrated as the 1982, or as most of the vintages made since 2001, the 1990 Cos has reached full maturity. It exhibits sweet berry fruit intermixed with spice box, herbs, and spring flowers. Expansive, round, and sensual, with wonderful purity as well as lushness, this irresistible wine can be enjoyed over the next 6-10 years. Release price: ($350.00/case) - WA, RP (6/2009)
90 pts - Wine Spectator
92 pts - Vinous
Excellent healthy red. Toast, cassis and smoky oak on the nose. Very rich, concentrated and tightly structured; long, firm aftertaste. Excellent balance for aging. (9+?). A second bottle showed similar concentration but was dominated by oak, its finish marred by astringent wood tannins. This bottle rated only 85.- Stephen Tanzer (11/1993)