The staff is welcoming and knowledgeable at this decent-sized whisky shop north of the main drag from the Castle.  As you'd expect, they have a large selection of whiskies in bottles of various sizes.  The reason I'm only giving this two stars is that I discovered they are also the most expensive whisky shop in the area by far -- at least of the five I wandered into, including four that are actually on the Royal Mile (where I expected prices to be highest).  A full-size bottle averaged 7-10 pounds higher here than elsewhere; it was just disappointing to discover.