On opening, a rich, deep texture, with some slate-y Petite Sirah underlying tones emphasized by the still-purplish color. Developed into dark chocolate and cherry, round and oddly lacking acidity, but not particularly flabby. Some other dark fruit, maybe figs, after a while. Muted nose without any of the typical Mourvedre funk.
I was curious about the acidity, so I pulled out my pH meter and took a reading: 4.54! I didn't believe it, so I recalibrated the device and got around the same thing, after a sanity check with a stock solution. Wines above around 4.0 pH are usually so flabby that you'd think they were mixed with baking soda, and since the protective benefits of sulphur dioxide diminshes exponentially with rising pH, shouldn't be expected to last very long at all. 4.5 is the usual pH for bottled distilled water.
All in all, a very pleasant sipper on a cold fall evening. I'll keep the remaining bottle for another five years to see how it develops.