The wines of Grand-Puy-Lacoste have a beautiful, deep color and the aromas are very pure and complex, subtle and refined. Depending on the vintage, one's first impression may be of ripe fruit or flowers, often toasted notes, spice and vanilla. With time it develops a remarkably full, rich character.

In the mouth one is struck by its elegant individuality. The flavors support and amplify its aromatic sensations with a notably large range of fruit, particularly cassis, which develops with age. The wines are well-built, with powerful tannic structure which never loses its silky smoothness.

By nature a wine for long aging, Grand-Puy-Lacoste needs between eight and ten years to reveal its full potential.

The 2015 Grand-Puy-Lacoste, a Bordeaux Blend from Pauillac, Bordeaux, is a well-regarded red wine notable for its balance and potential for aging. This vintage is made up of 74% Cabernet Sauvignon, 23% Merlot, and 3% Cabernet Franc, marking the first inclusion of Cabernet Franc since 2009.

James Suckling gave this wine a high score of 96, praising it as "Superb wine" and highlighting its "spicy and toasty oak aromas" alongside "superbly expressed red and dark berries." He noted its "fresh, focused, vibrant finish" and suggested it would be best enjoyed starting in 2023.

TheWineCellarInsider.com's Jeff Leve awarded the wine a 94, emphasizing its aromatic complexity with notes of "smoke, truffle, tobacco, pencil lead and cedar." Leve described it as "soft in texture, full-bodied, fresh, lively, and sweet" with the structure to age "for decades."

Neal Martin from his Wine Journal also shared an impressive score of 95, appreciating the "intense bouquet with blackberry and strawberry fruit laced with cedar and graphite." He noted that the wine feels "harmonious and caressing, very tensile and poised" with potential for long-term aging.

Wine Spectator's JM rated it at 92, noting its charm with "violet-infused plum and cherry fruit" and "light black tea and warm cast iron accents" that align with a typical Pauillac profile.

Decanter's review by Jane Anson, who scored it a 94, found it "a definite standout," highlighting the wine's "black fruits, firm tannins, excellent graphite and slate notes." She remarked on the "very good quality" and its careful extraction.

Overall, the 2015 Grand-Puy-Lacoste is appreciated for its balance, elegance, and capacity for aging, with reviewers consistently noting its vibrant fruit profile, refined tannins, and complex aromas.