Nose: You won't believe this, but it's strongly evocative of sherry wine! I will say, if you wouldn't have told me this was a PX maturation, I wouldn't necessarily peg it for such right off the bat. This has the nutty profile that I often find in less sweet varieties. That's not to say there's no sweetness, but I get nothing of the sometimes-cloying, concentrated nature of PX. On the other hand, despite lacking over-the-top sweetness, it also doesn't really have any of the earthy or savory notes that you often find in big sherry. It's toasted nuts and vanilla to the fore. I'll say it's not the most complex thing ever, but it's damn pleasant. Water adds a dusty, minty note.
Mouth: The initial mouthfeel is medium: less viscous than I sometimes like on big sherry drams, but given there's not a huge punch to this, it still works. A little bit of heat, but nothing too noteworthy for the bottling strength. The palette has more of the dried fruit typical with this style than the nose, although it's still not terribly prominent. In general, while the nose was like smelling a glass of sherry, tasting this is more typical of whisky. Not much change with water.
Finish: Medium, same.
Comments: This is my first experience with Glendronach single cask bottlings (now called "Cask Bottlings" so they can do vattings and finishings, I imagine). I really enjoyed, like many, the first bathes of the 15 yo Revival. I think this is pretty solid, too, especially because the RMW exclusive didn't have quite the huge price when I purchased it that several of the non-exclusive UK bottlings possess. I wouldn't pay premium dollars for this, but I'm pleased to have it in my collection.