If you're just looking for a lot of sherry aroma/flavor, this certainly delivers – but then why spend so much money on an old bottling? You can easily get the same experience in younger, but equally heavily sherried whiskies.
Mocha, chocolate, cherry, amaretti, tobacco, leather, hazelnut, aromatic old wood.
A typical "nineties sherry" nose, but I get neither that this is 27-year-old nor that it's a Mannochmore.
My guess is that this would've fared better as a refill bottling with more space for distillate and wood and less of a focus on the seasoning sherry.
More time in the glass allows more oak aromas to come through, which is to its benefit (nearing 89 points after about 20 mins).
Had I tasted this blind, I might've estimated the ABV to be even higher. Pretty prickly, even slightly sharp. Quite some spicy oak. Again lots of coffee and leather, with more of a dried-fruit theme now. More acidity and cooling menthol than the nose had me assume. Not really what I have in mind when I imagine 27 years of full-term sherry maturation. Not all that complex, and too brash for my taste.
Clove, tobacco, leather, dark chocolate, ristretto. Perhaps an idea of wood smoke after about 5-10 minutes.