Below is something I wrote directly to Heather & Jeff.
Just wanted to say thanks for the wonderful hospitality and allowing me to join you for dinner. You both made me feel very comfortable staying in your home as this was the first time I have ever stayed in a air bnb with a family. I will highly recommend your home for others who visit Melbourne and if I return for more work in the area I know there will be a great place for me to stay.
A big thank you once again.