Location for Bicheno was great - walking distance to the blowhole and many good food like the Lobster Shack. Emelie provided a list of great food recommendations which was much appreciated.
We enjoyed pastries at Little Bay Collective, the scallop pie from Blue Edge bakery and fish and chips from The Gulch.
Just so you are aware before booking, the "backhouse" is literally the back / second half of a house. It's connected to the rest of the house (but locked off), and even the back patio/deck is connected to the main deck. The walls are quite thin so we could hear every footstep from the main house, tap/toilet usage and every scream from children who stay there for Airbnb. The guests from the front house seemed surprised to see us there, and the kids often ran up and down our back patio.
As seen in the description, there is no kitchen, with only a kettle, toaster, microwave and some utensils. Dishes have to be washed in the bathroom and there are no pantry goods provided (only some teas, no salt and pepper etc). So this would be ideal if you are planning on eating out the whole time or microwave meals.
It's 30-45 mins away from Freycinet, and 1.5 hours away from the Bay of Fires.