The name and the artwork on the bottle are what sold me on choosing this from the shelf on my last beer store trip. Just look at this (stolen from their site, not my poor photo skilz):
The commerical description from ratebeer.com is:
Duchesee de Bourgogne is the traditional top fermented reddish-brown ale from the West-Flanders region of Belgium. This refined ale also known as "The Burgundies of Belgium" is a blend of 8 and 18 months old ales following careful maturation in oak casks. 100% natural and unpasteurized.
OK, but what does it taste like? Well, like a belgian ale but a bit sweet and a sourness that most describe as being like balsamic vinegar. While this may not sound good, it makes for a very interesting and complex flavor that gets better with every sip.
If you see this, be sure to try it. I don't think you'll be disappointed.