Coomalie is set in a beautiful rugged estate and the property itself is a showpiece of a house; feels like a cross between a villian's lair and millionaire Colorado jungle lodge from the 1970s. The stone work is intricate and beautiful. You won't forget this place for this reason alone - it oozes character.
Only significant "issue" was that while the heating options seem pretty comprehensive throughout the property (i.e. there would be no problem in winter), only the main living area and one bedroom is air-conditioned - so the remaining three bedrooms are not a nice place to be on hot sweaty nights. Some cheap stand fans would have mitigated this somewhat.
There are cobwebs in the rafters and it could do with a few more basic supplies, but overall this is nitpicking - the property largely speaks for itself and the pricing represents good value for what it is.
The place does have WiFi (in spite of the listing saying it doesn't). It is a slow satellite connection; more than good enough for staying in touch, but definitely no Netflix and such. The area has usable outdoor and borderline indoor mobile coverage under Optus and Telstra.
Lisa was a pleasure to deal with and accommodated a slightly later checkout due to a mishap with a tree.
A stone's throw from Healesville makes it a great location from which to explore the YV.
Would consider coming back for sure.