When you have had as many beers as I have had, surprises don’t happen frequently and when they do they are usually of the bad variety. But lately, I have had some really good but really odd flavors. Sloeber from Belgium has a sort of apple-esque quality but it has an sweet alcohol back. It is really hard to find the right words for. It is delicate and the most un-Belgian, Belgian beer I have had.
The XH aged in Sake casks from Hitachino is another odd taste. You get a hint of sake but also fruit and grain. It is a beer that at first tastes not like a beer but then all the flavors meld and it is wonderful. I do not know how many people will like either of these but to me they fall into the category of “what is this? It tastes really good.”