99 points James Suckling

 The purity of fruit is really something else here, with currants and fresh flowers, such as violets and roses. Flower stems as well. Fantastic length and structure to the wine, with tightness and focus. Wonderful fruit. Graceful. A blend of 78% cabernet sauvignon, 8% merlot, 7% petit verdot, 6% cabernet franc and 1% malbec. Try after 2028.  (4/2022)

97-99 points Wine Advocate

 Winemaker Michael Silacci commented that usually the blends are finished in January or February after the vintage. This year, with the 2019s, he was still tweaking the blend, but he did mention that this is "pretty close to the final blend." Deep garnet-purple in color, the 2019 Opus One leaps from the glass with notes of Black Forest cake, Morello cherries, mulberries and fresh blackcurrants plus hints of licorice, wilted roses, Sichuan pepper and iron ore. Full-bodied, the palate is jam-packed with juicy black, blue and red fruits, framed by velvety tannins and background freshness, finishing on a compelling earthy/mineral note. Tasted as a barrel sample, this is a truly magnificent Opus One in the making! (LPB)  (4/2021)

98 points Decanter

 Intensely perfumed on the nose, rose petals, violets, deeply scented and seductive. Rich yet expansive on the palate, very open with dark chocolate, cherries, fragrant blackcurrant - sweet and scented, with satin-like tannins that effortlessly support the flavours. There is real drive and persistency to this, fresh, youthful and alive with a vibrant juiciness that is so appealing. No one element is too dominant, this feels harmonious and balanced with an excellent tangy acidity and long minty, herbal finish with edges of tobacco and dark chocolate. A classic Opus with breadth, finesse and energy. Grapes were harvested 10 days earlier than average, on 10th September with harvest lasting four weeks. 6% Cabernet Franc and 2% Malbec complete the blend. Ageing 19 months in new French oak. (GH)  (7/2022)

98 points Jane Anson

 The balance of the 2019 vintage in Napa is a pleasure to taste, and this is a brilliant Opus One, showing nuance, depth and concentration, and a ton of rich dark fruits. There is so much to love here, it ebbs and flows through the palate, has some of the character of the early years, those 1979s and 1980s that are still tasting incredible, and the utterly brilliant 1987. Raspberry, blueberry, damson, cassis, there are crunchy fruits and sweet fruits at the same time, playing off against each other, fine tannins, a full bloom of floral violet and peony aromatics, gentle woodsmoke and white pepper, with tension, depth and poise. 22 day skin contact. A wet winter meant a late bud break, 10-15 days behind average, followed by a hot summer that allowed the vines to catch up, so harvest relatively normal beginning September 10 for one month.  (6/2022)

97 points Jeb Dunnuck

 The 2019 Opus One is brilliant and certainly a worthy follow-up to the 2018. Pure cassis fruits, notes of violets, rose petals, and lead pencil, medium to full body, nicely integrated background oak, and terrific tannins all define this beauty, and while it has the vintage's up-front charm, it's going to age beautifully for 20+ years as well. The blend is 78% Cabernet Sauvignon, 8% Merlot, 7% Petit Verdot, and the rest Cabernet Franc and Malbec.  (2/2023)

97 points Vinous

 The 2019 Opus One is a remarkably elegant wine. Silky tannins and bright, floral aromatics add to an impression of total finesse. Crushed flowers, bright red-toned fruit, mint, lavender and rose petal are all beautifully delineated. There's a touch of new oak today, but new wood has never been a signature of Opus One, so I imagine that is a stage in the wine's development. Interestingly, the 2019 is the first vintage fermented mostly with ambient yeasts. (AG)  (2/2023)