Crystals place is amazing. Clean, white, air conditioning-- an absolutely serene environment. She and Steve are hospitable and professional.
My experience being international:
Recommend taking an Uber, not a bus to Crystals place. We followed the directions from the Airbnb listing to get to the place from Blacktown station, and it was hot waiting for the bus and a bit of a walk afterwards. Don't recommend dragging suitcases that far if you're coming from overseas with a load of stuff.
On our arrival, the WiFi did not work. I was trying to make this trip as inexpensive as possible, so WiFi was very important. Steve came over straight away to help. It was fixed briefly and then went out again. We couldn't risk the WiFi being intermittent, so we made other arrangements for accommodations. We planned to stay for four nights, and they refunded us for one night.