We stayed at Greg's place for 2nights whit our 11month old son and had a great time!
We met Greg, who's a lovely person, on arrival and also he showed us a shortcut to the Tree Top Walk by driving us around, so that we'd not get lost. :)
The house is all yours, as you're just staying on top if the garage. A lot of yummi breakfast items are available and are topped with a bowl of fresh fruits and many snacks.
Everything was sparkling clean, wifi was fast and all sightseeing options are very close by. Also two big supermarkets are near.
The staircase was no issue with a crawling baby as we could easily block it withour suitcases.
Very much recommend!!!