92-96 points Richard Juhlin (Jun 2012).

94+ points Antonio Galloni (Wine Advocate): "[$169 list] The 2003 is one of the most unusual Dom Perignons I have ever tasted, going back to 1952. Readers will remember that 2003 was a torrid vintage across northern Europe, especially during the critical month of August, when temperatures remained very hot for well over a month. The harvest was the earliest on record, until 2011, that is. I suppose its not that surprising Chef de Caves Richard Geoffroy chose to make a 2003 Dom Perignon, given his penchant for risk-taking, an approach that has yielded so many memorable wines that stretch the perception of what big brand Champagne is and can be. The 2003 Dom Perignon is a big, broad shouldered wine. It does not have the seductiveness of the 2000, nor the power of the 2002. It is instead very much its own wine. In 2003 Geoffroy elected to use more Pinot Noir than is typically the case, and that comes through in the wine’s breath and volume. The 2003 is a big, powerful Champagne that will require quite a bit of time to shed some of its baby fat. The trademark textural finesse is there, though. I expect the 2003 to be a highly divisive Champagne because of its extreme personality, but then again, many of the world’s legendary wines were made from vintages considered freakish at the time. The 2003 is an atypically, rich, powerful, vinous Dom Perignon loaded with fruit, structure and personality. It is not for the timid, but rather it is a wine for those who can be patient. No one has a crystal ball, but personally I will not be surprised if in 20 years’ time the 2003 is considered an iconic Champagne. Anticipated maturity: 2016-2038. (Nov 2011)"

94+ points John Gilman (View From the Cellar): "The 2003 Dom Perignon, which I had not had a chance to taste when it was initially released, is really a quite stunning example of the vintage. When I had initially heard that Moët et Chandon was planning to release a Dom Perignon from this torrid summer, I was a bit surprised, but figured that the superb track record Dom Perignon has had over the last several decades was sufficient evidence to not judge the wine before it was tasted. So, I was not disappointed to find that the 2003 Dom Perignon is indeed a young and classic wine in the making, with plenty of structural integrity and customary youthful snappiness. The lovely and very fresh nose wafts from the glass in a blend of quince green apple, complex minerality, young Dom herbal complications, sourdough bread, citrus peel and a nice touch of white flowers in the upper register. On the palate the wine is deep, full-bodied, young and very well-balanced, with a rock solid core, superb mineral drive, refined mousse, outstanding acidity and fine focus and grip on the very long and youthful finish. A lovely Dom in the making that is quite classic in profile and needing time in the cellar to really start to offer up its secondary layers of complexity. 2019-2040. (Jan/Feb 2013)"