The 2015 San Guido Sassicaia, a proprietary blend from Tuscany's Bolgheri region, has garnered high praise from wine critics, reflecting its exceptional quality and character. This vintage, described as bold and ripe due to the hot growing season, has impressed reviewers with its complexity and depth.

James Suckling awarded it a remarkable 98 points, noting its "full-bodied, dense and powerful" nature, complemented by "a ripe and rich tannin backbone." He highlights the wine's dynamic character, suggesting it is "approachable now" but will improve with age.

Several reviewers, including Robert Parker’s Wine Advocate, Wine Spectator, Wine Enthusiast, and others, gave the wine a consistent score of 97 points. Monica Larner from Robert Parker’s Wine Advocate commends its "seamless precision and focus," mentioning the wine's "dark berry fruit, spice, leather, licorice, and roasted coffee bean" notes. She describes the wine as both graceful and silky, with a "confident and proud" demeanor.

Wine Spectator praises its "rich and concentrated" flavors of black currant, blackberry, and spices, describing it as "structured yet impeccably balanced." The integration of oak and vibrant acidity is also highlighted, suggesting optimal drinking from 2023 to 2042.

The Decanter review acknowledges the wine's "bold, ripe" style, noting its "big, bold and full-bodied" nature, which deviates from the typical Sassicaia elegance but offers "a lot of charm."

Wine & Spirits adds to the accolades by describing it as "fine-boned and silky," with flavors that are "saturating yet seemingly weightless." They highlight the wine’s ability to gain momentum over several days, indicating its potential for longevity.

Overall, the 2015 San Guido Sassicaia is celebrated for its bold flavors, balance, and aging potential, earning its place as a standout vintage in the eyes of critics.