95-Points by Decanter.
This is the most high-toned of Gaja’s three 2018 Brunellos, a portion of the fruit coming from the Torrenieri vineyard in Montalcino’s cooler northeastern corner. This classic Brunello is herbal with notes of thyme and rosemary along with a hint of balsamic, which opens to red berry aromas of cherry and plum. There are hints of pine resin and sweet notes of vanilla bean.Tactile tannins keep your palate longing for more. While gorgeous now this wine will age effortlessly in your cellar for the next 10-20 years. 
 
Italy's first DOCG in July 1980, alongside Piedmont's Barolo.
Brunello di Montalcino is a red DOCG Italian wine produced in the vineyards surrounding the town of Montalcino, in the province of Siena, located about 80 km south of Florence, in the Tuscan wine region.
Aging
Brunello: 4-2-4
Brunello Riserva: 5-2-6
Brunello (annata): minimum 4 years of aging, including at least 2 years in wood and at least 4 months in bottle; it can be released starting January 1 of the 5th year after harvest.
Brunello Riserva: minimum 5 years of aging, including at least 2 years in wood and at least 6 months in bottle; release is January 1 of the 6th year after harvest.
Sangiovese Grosso or Prugnolo Gentile (locally Brunello): Noted for having thicker-skinned berries, and because of this, Brunello produces wines with exceptionally bold fruit flavors, high tannin, and high acidity.
 
Pieve Santa Restituta is Gaja’s estate in Montalcino, purchased in 1994, it is the family’s first expansion outside the Barbaresco and Barolo areas. Located in a particularly privileged position, facing south by southwest, and facing the sea which is a windy, dry, and bright microclimate, preventing damp stagnation and allowing full grape ripening.
The Brunello is a combination of all the vineyards in Pieve Santa Restituta. The grapes from the different vineyards ferment and macerate separately for around three weeks. After 24 months of ageing in oak, the wines are blended and then aged for another six months in concrete vats.
The name of the winery derives from the ancient Pieve (church), situated in the middle of the estate, whose foundations date back to the 4th century AD. The labels chosen for the wines pay tribute to the Pieve and recall the typical colors of the Gaja family, i.e. black and white. 
Wine has been made here since the 12th century. Pieve Santa Restituta produces three Brunello di Montalcino wines: Rennina, Sugarille and Brunello di Montalcino.