We spent 4 days in Jenny's bungalow with our 7 months old son. The house is the perfect place for a relaxing stay in Bundeena. It's literally a minute walk to the beach and also not far to the Bonny Vale campground, which has a fantastic beach/estuary for toddlers. The house is very clean and has everything you need (including an outdoor shower, which is great when coming home from the beach). Jenny was very responsive to messages, too.
The house is a great base for walks in the national park, and Bundeena has all things close by - a well stocked iga supermarket, a really good cafe (driftwood cafe, which also does dinner). The Indian home cooked take-away food from the servo was fantastic. Wouldn't have found and tried it without Jenny's recommendation.
One thing that can potentially complicate things when travelling with a baby or toddler is that there is no door to the bedroom, so separate bedtimes aren't easy to arrange.
Overall we had a great time here and would certainly stay again.