The 2018 Marc Hebrart Rive Gauche Rive Droite Grand Cru Extra Brut is a Champagne blend that hails from the Vallee de la Marne region in France. Crafted by the esteemed producer Marc Hebrart, this vintage is a testament to the region's rich winemaking heritage. Presented in a classic bottle sealed with a cork, this white Champagne is noted for its finesse and complexity.

Though specific professional reviews are not provided for this wine, the reputation of Marc Hebrart as a producer suggests a commitment to quality and tradition. Known for producing Champagnes that are both elegant and expressive, Hebrart's wines often feature a blend of Pinot Noir and Chardonnay, which may be expected in this blend as well.

In general, wines from the Vallee de la Marne are celebrated for their balanced acidity and rich fruit profiles, often highlighted in the Grand Cru offerings. Extra Brut Champagnes like this one typically have a lower dosage, which can lead to a drier taste profile, allowing the natural flavors of the grapes to shine through more prominently.

Given the vintage year of 2018, this Champagne may exhibit characteristics influenced by that year's growing conditions, which were generally favorable in the Champagne region, leading to wines with good structure and ripe fruit flavors.

While detailed tasting notes are not available, those familiar with Marc Hebrart's style might anticipate a wine that showcases finesse, with a possible emphasis on bright citrus notes, minerality, and a fine mousse. The absence of specific alcohol content on the label is typical for Champagne, where balance and complexity are prioritized over strength.

Overall, the 2018 Marc Hebrart Rive Gauche Rive Droite Grand Cru Extra Brut is a likely candidate for those seeking a refined and traditional Champagne experience, reflective of both its reputable producer and celebrated origin.