We stayed at the wombat cottage for 4 nights with 2 young kids 4 and 5 years. Highlights of the day is always feeding the animals. We did it almost twice a day (beginning and end of the day). We run out of feed fairly quickly and Peter quickly directed us to his backup supplies.
Pro: feeding farm animals
Con: Rather far from Katoomba and other towns.
For those travelling to the farm via google map, i think it's fairly accurate.