This expression is a bit better than the 12 year and bit less so than the 18 but is certainly the right price for quality. I think if you can find the older dumpier bottles, buy them, they are also that much better then the new bottle.
The smooth smoke with almost no hint of peat is really good. I adore Highland Park as a great go-to bottle any time just need some whisky and I want falt out good stuf without any real ...erm....style/trend.
When I nose this I think of black grape juice. Like a sophisticated Welch's if you will. But the nose also has plumbs and coal smoke as well. Very sweet yet bitter fruits on the palate. It finishes nicely with smoke and soot. B/B+
Side note: I'm having the "round dumpy" older bottles from the early 2000s and I find these to be more enjoyable compared to the new flask type bottles. Agreed with Dave on buying em if you see em.