"The 2010 Octagon is a blend of 60% Merlot, 20% Cabernet Franc, 15% Cabernet Sauvignon and 5% Petit Verdot, aged for 13 months in French oak, about one-third new and the rest two years old. It comes in at 14.3% alcohol. This, the latest in the mini-vertical of this bottling this issue, came from "one of the warmest [years] in the past 20...," said the winery. You'll note the small alcohol spike–most of the others come in around 13.5. By today's standards this doesn't seem high in alcohol, but the wine does show some alcoholic impact that the others do not. It also lacks the character that its predecessors have. It is fruitier and more approachable on opening, but it doesn't seem to have the same complexity that even its immediate predecessor, the 2009, has. It's hardly a bad wine, though, so don't misunderstand. I was actually surprised at how well it came around with air. It exceeded my initial impression, which caused me to lean up on it a bit. It was the biggest beneficiary of giving these a lot of air."
Mark Squires, Wine Advocate