Amazing. As good as Balvenie 21 Portwood (and about the same price), maybe even better. I can't do all the silly scotch tasting note stuff (hints of couch leather and dolphin snot, etc.). But if you have ever tasted a well aged malt that has all that deeeep oak complexity that then has been finished in the very best Pedro Ximenez sherry casks to give it that rounded sweetness then you'll have idea of how this stuff tastes. Like a candied Victorian door knob? I don't know I got nuthin'. It's just damn good. Think of stupid things you've blown $195 on and just know that this one is worth every cent.
For a much more affordable approximation, try Glenmorangie Quinta Ruban aged in port casks - best unpeated daily sipper I can think of. But that is an approximation of, not a substitute for, the perfection of this beautiful malt. It is from Bruichladdich, which is on Islay, but it is unpeated and unlike any other Islay malt I have tried (and I love peated malts!). I just finished a great bottle of well-peated, balanced, Lagavulin 16 PX, which was heretically wonderful for an Islay malt. Also a Laphroaig Triple Wood which was awesome. But this one is a progressive (in that it is an unpeated Islay malt) class above all else from Islay. I love too that this is aged 21 years but you'll have a hard time finding the age statement on packaging, but it is there in tiny letters on the side.
By the way, the (longish) short story referred to on the label we read in college Spanish class. La Noche Boca (not Bocca) Arriba is a very cool story written by Julio Cortazar, an Argentine author. I won't spoil it here but I do recommend it highly.