96-Points by Robert Parker's Wine Advocate
The 2021 is a barrel sample of Cabernet Sauvignon maturing for 30 months in 100% new French oak. It unfolds slowly on the nose to reveal redcurrants, cherry preserves, fresh tobacco leaves, aniseed, sagebrush and lavender. The full-bodied palate has a core of perfumed berry fruit structured by generous, powdery tannins and energetic acidity, and it finishes with alluring floral nuances.
 
96-Points by James Suckling.
Dark-fruited and toasted aromas of wild blackberries, tobacco, seaweed and orange zest. The palate is full-bodied with finely integrated tannins and bright acidity. It shows notes of bramble berries, leather, graphite and roast meat. Wonderfully balanced and fresh. Drink or hold.
 
95-Points by Vinous.
A bouquet of rum-soaked cherries and roses is complicated by hints of tobacco, sweet spice and vanilla bean as the 2021 Cabernet Sauvignon Patrimony comes to life in the glass. It’s elegant and silky, with an almost molten chocolate mouthfeel. Oak-inflected crushed wild berries and cherries ride a core of vibrant acidity. A web of sweet tannins remains through the lightly structured yet long finale. A pleasantly bitter tinge of blackberries and mocha resonates. While wonderfully balanced and enjoyable, the 2021 simply lacks the impactful wow factor of past vintages. That said, no fan of DAOU will want to miss it.
 
Proprietary Barrel Program:
Some of the barrels are crafted from rare, super fine-grain pink oak, that the brothers had custom-made as a proprietary DAOU barrel. 
Native Yeast Fermentation:
Fermented with wild yeasts cultured from DAOU Mountain, imbuing the wine with native texture and character. 
Daou Vineyards is a California winery in the Adelaida District AVA of Paso Robles. It is most closely associated with Cabernet Sauvignon and Cabernet Sauvignon-dominant Bordeaux-style blends.
Daou also makes wine from some familiar Rhône grapes including Syrah, Viognier, Grenache Blanc and Roussanne. The portfolio also features Pinot Noir, Chardonnay and Sauvignon Blanc.
The wine portfolio is divided into four tiers at different price points. The top-level Estate Collection is, as the name suggests, made from estate-grown fruit. This range focuses on Bordeaux varieties and comprises:
Soul of a Lion: the flagship wine: Mostly Cabernet Sauvignon with Cabernet Franc and Petit Verdot
Mayote: Syrah and Cabernet Sauvignon with a smaller component of Petit Verdot
Estate Cabernet Sauvignon
Micho: Two-thirds Merlot with one-third Cabernet Sauvignon
Cuvée Lizzy: Malbec, Petit Verdot, Cabernet Franc and Cabernet Sauvignon
Sauvignon Blanc
The other ranges are:
Reserve Collection: combines estate fruit with grapes bought from selected growers. It includes single-vineyard wines from partner growers. such as the Solomon Hills Vineyard Pinot Noir from the Santa Maria Valley
Discovery Collection: mostly bought-in fruit. 
The various tiers also see different amounts of aging in new French oak barrels.
Daou vineyards are certified sustainable by SIP (Sustainability in Practice) for sustainable farming. All the estate fruit is hand harvested.
DAOU Vineyards & Winery history
The estate was established in 2007 by Beirut-born brothers George and Daniel Daou, who had previously built a successful IT business. Daniel has made the transition from engineer to winemaker.
The initial property consisted of a section of land that had once been part of the Hoffman Mountain Ranch. In 2012 the brothers bought the rest of the Hoffman property which increased their vineyard holdings to 86 hectares (212 acres).
The Hoffman Ranch had been the first modern commercial winery in Paso Robles after Prohibition. It was established by Stanley Hoffman with help from prominent Californian winemaker André Tchelistcheff.
Expressions Collection: at the time of writing comprises a single wine The Bodyguard, a blend of Petit Verdot and Petite Sirah (Durif)