Eau-de-vie, Grappa, Kirsch…No Thank You!
It’s like the delicious-smelling “Skittles Chap Stick” that one can only savor the aroma of, not the taste! 
I do love some of the liqueurs from France that are like melted jam/preserves.
I asked about longevity because I bought three of these when I was in France in 2000. I have opened them and taken a sip, whenever I felt like it. Which was seldom, because I found them too harsh, also.
I enjoy Williams which is pear. There is an appreciation but it is not like sipping wine