MacRostie operates in Sonoma County, the North Coast region of California known for cool-climate viticulture and refined expressions of Pinot Noir and Chardonnay. The winery's portfolio centers on these two varieties, with Nightwing Vineyard Pinot Noir and Nightwing Vineyard Chardonnay anchoring its output. Both wines have drawn assessment from major critics including Wine Enthusiast, Wine Advocate, Wine Spectator, and Decanter. The Nightwing Vineyard Pinot Noir averages 93.8 points across prestige ratings, while the Chardonnay from the same vineyard averages 93.5. A Terra de Promissio Pinot Noir rounds out the core range, averaging 93.0 points. The winery's focus on single-vineyard designates and the Pinot Noir–Chardonnay pairing reflects the broader character of Sonoma's cooler microclimates, where these grapes achieve balance and complexity.