I've reviewed their 18 year old scotch before. The review is here. While this is also an 18 year old and it is aged in similar sherry and bourbon casks, this is not the same scotch by any means.
Color: Dark amber
Nose: floral, notes of vanilla
Palate: Extremely smooth and round, not at all harsh to the tongue or taste buds
Finish: Long and warming
This scotch is so smooth, it's like drinking silk. Even my wife enjoyed sipping this scotch. This one is well worth the expense if you are looking for a special drink.