This has been Jim Murray's Scotch Whisky of the Year in 2017, 2019 and 2020, Second Finest Whisky in the World (97 pts), Source, usual price is about $180
Other reviews
The hardest decision to make here: full marks or not. Actually, no: an even harder decision is trying to work out the leading forces behind this extraordinary nose. This is so in tune and well balanced it is impossible to nail exactly what leads and which follows
The most crystalline, technically sublime Speysider I have tasted in a very long time…I didn't expect to find a better distillery bottled Glen Grant than their superlative 10-year-old. I was wrong
Another Glen Grant knocking on the door of perfection.
The 10 YO is also at a good price, 95pts, Best Single Malt Scotch 10 Years & Under in 2015
https://www.ozbargain.com.au/node/537890 this deal is still available for stacking.