From the official website:
The Irishman 17 Year Old Single Malt was first released in 2016 to mark Walsh Whiskey Distillery’s seventeen years in business and a momentous year for the Walsh family with the commissioning of the Distillery at Royal Oak.

The Irishman 17 Year Old is a superlative Single Malt from a single cask resulting from 17 years maturation in a first fill Sherry Butt. The signet of this exceptional whiskey is its rich deep flavour of great warmth. This super-premium, triple distilled Irish whiskey is bottled at 56% ABV and non-chill filtered.

Nose: The influence of the Sherry cask is forever present, with notes of dark chocolate.
Taste: Toasted oak and sweet sherried raisins gives a complexity that is satisfying to the palate.
Finish: A combination of nutty oloroso sherry as well as a dark chocolate that begs to continue.