I liked the 2009 Chateau Mayne-Guyon Blaye Côtes de Bordeaux a lot, in fact thought it one of the best values around in red wine.  A quick note to let you know I liked the 2010 Chateau Mayne-Guyon, also available at Trader Joe's, even better.  I drank it a few months ago, so you can take details with a grain of salt, but I'd say it's more elegant, less chunky and tarry, than the 2009, but still fairly full-bodied and quite flavorful.  More emphasis on delicious berry fruit, a bit less on dark/minerally tastes, but still enough of the latter for complexity, enough tannin to avoid flabbiness and suggest ageability, and perhaps a bit better balanced than the 2009 as well.  I'd guess this would be serious competition for much more expensive (and properly aged) Bordeaux---perhaps not 2nd classed growths but probably some of the better Crus Bourgeois---in a blind tasting.  Another no-brainer for multiple bottle purchases at $8.  If one has to rate, I guess I'd say 8/10 on a 10-point scale that goes to 11, corresponding to around 87-89 Parker points, and I'm probably being conservative here.  On my last visit to TJ's there was a big empty spot with one or two bottles of this on the shelf, so perhaps the secret is out... I already got my stash of four or five bottles.