We had a wonderful time staying in Jane's house.
Lovely, spacious, comfortable home with everything you need in a very quiet neighbourhood but only a short 5-10 minute walk to Mona Vale village shops for great food and coffee.
We loved being woken by the kookaburras each morning!
Having a car, the location was a great base from which to explore the beautiful beaches of Mona Vale, Palm Beach and Whale beach (appreciate the map you left , Jane) and I recommend the walk from Jane's house to beautiful Church Point Wharf (about 1 hr there). What a stunning spot; great coffee too and a brilliant place for lunch or dinner at the Wharf. Although, if you don't have a car, the buses are frequent and very easily accessible to all these places.
Wish we had more than four nights - thanks Jane.