J&B Rare Blended Scotch

I did have a very good bottling of this a couple years ago which surprised me and almost won me over. But never again since. this is my 3rd try. The current bottle I have is barely drinkable with ice. Tastes of prune, oversteeped tea, vanilla, and pencil eraser but with a nice peat note although more subtle than that other bottle. There is some vanilla and pleasant flavor in the finish but the arrival just completely ruins it. I'd honestly prefer a bland canadian blend over this because even though it lacks the added flavor, the Canadian whiskies don't taste awful. This is very bad to me. I can't imagine this is what Dean Martin was drinking...