Wine Spectator Review:
Black in color, with aromas of orange peel, new leather, currant, berry and Christmas pudding. Full-bodied, with layers of velvety tannins and a long, long finish of fruit and spices. The cashmere texture is all there. 2003 plus 2000 equals 2005. Best after 2015.
Wine Advocate Review:
While I am not convinced the 2005 Cos dEstournel will eclipse the compelling 2003 Cos, it is unquestionably another superb classic from proprietor Michel Reybier and his brilliant winemaker, Jean-Guillaume Prats. Made from an unusually high percentage of Cabernet Sauvignon (78%) and the balance mostly Merlot with a tiny dollop of Cabernet Franc, this superb effort requires plenty of time in the bottle. It boasts an inky/purple color as well as a glorious perfume of licorice, Asian spices, creme de cassis, blackberries, and toasty oak. This full-bodied St.-Estephe is exceptionally powerful, pure, and dense with a layered mid-palate that builds like a skyscraper. While there are massive tannins, they are remarkably velvety and well-integrated in this big, backstrapping effort that should enjoy an unusually long life. Forget it for 8-10 years, and drink it between 2017-2040.
The palate has immense concentration, powerful black fruit, perfect acidity, great sense of symmetry and focus. Real poise and controlled power. Builds and builds in the glass. Slight meatiness on the finish that just takes its foot off the accelerator. A majestic Cos dEstournel, of that there is no doubt - Neal Martin