I previously worked very close to John's Lane, the site of the long-gone Powers distillery in Dublin. In fact I worked on Roe Lane which is the site of the long-gone Roe & Co distillery. That was once one of the largest distilleries in Dublin and now a brand resurrected by Diageo, who also have plans to build a new distillery on their Guinness lot. In any case, while I haven't yet tasted DIageo's new fare, I have enjoyed Midleton's output and this is one of my favourite Irish whiskeys.
A little bit of water brings out the best in this, in my opinion, but it is still damn fine neat. The nose is tiramisu, chocolate, and toffee with a similar smooth taste and the characteristic spiciness of a pot still whiskey.