Old Parr 18 is a smooth and mature blended Scotch with a more rounded and settled profile, offering an easy and polished drinking experience. It has a pleasant sense of refinement and enough richness to feel clearly more aged, but for my palate it does not surpass Old Parr 12. The reason is simple: the 12 feels fresher, fruitier, and more lively, while the 18 comes across as calmer and less exciting. This is still a good whisky, enjoyable and well made, but it loses some of the charm and energy that make Old Parr 12 more appealing to me. A respectable and mature blend, though not the expression I would choose between the two.