Got a sample bottle. Tried this neat and in my morning coffee.
Neat: You get a bit of coffee and a bit of whiskey, and they both feel watered down. Its not sweet like Kahlua which is too sweet for my taste. This is a bit thin, but it seems this was meant to be a mixer.
In my coffee: You definitely taste more of the Irish whiskey when mixed with coffee. It adds a slight dark, bitter chocolate taste to my brew too.