95 points - John Gilman
95 points - Wine Enthusiast
95 points - Wine Spectator
94 points - Vinous
18+/20 points - Jancis Robinson
" 45% Pinot Noir, 39% Chardonnay, 16% Meunier, blended from 140 wines dating from 1996 to 2010, including 42% reserves. Krug leads off where most other Champagne houses end, and its entry wine is every bit a prestige cuvée. It smells and tastes like no other wine, a monumental paradox of tense freshness, profound maturity and inimitable complexity. Decadently rich, extravagantly complex and thunderingly expansive, Grande Cuvée is a vinous Champagne of multifaceted personality, yet ever-heightened tension. For all it represents, spanning 25 years of production, it presents incredible value."
97 points - Decanter
" Compared to Krug's 160th edition, the bright golden-yellow colored NV Grande Cuvée 166ème Édition (ID117010) is still a baby that shows the chalky and fruity features of a young white Burgundy intermixed with notes of Schwarzwälder Kirsch (dark cherries with black chocolate) and floral (ammonia) flavors on the pure, fresh and elegant yet intense and still yeasty brioche nose with its ripe apple aromas and refreshingly bright (lemon juice) overtones. Round, wide and very elegant yet also straight and tense on the palate, this 2010-dominated cuvée is very delicate, fresh and chalky but also dense and lush in its vinous texture. The finish is well-structured, fresh and persistent, indicating great complexity and vibrancy. However, I would wait at least another three years, during which time the 166th edition will gain even more finesse and quiet. The 166ème Édition is composed of 140 wines from 13 different harvests between 1998 and 2010, and it's a blend of 45% Pinot Noir with 39% Chardonnay and 15% Pinot Meunier, the latter of which provides the vivacity that the Chardonnay from the Côte des Blancs surprisingly didn't have in 2010, a vintage that was marked by its 'tumultuous climate,' as Eric Lebel writes. Tasted in New York in November 2018."
96+ points - Robert Parker's Wine Advocate