This is a great base of you are heading to Cathedral Cove and Hot Water Beach.
The beds are super comfy and also are equipped with heaters and hot water bottles which I used during my stay. They also have spades and beach towels that you can borrow.
Just remember that Hahei is small but does have a milk bar / dairy, cafe and pub with limited hours. There is also a bistro on site (but I did not go there.)
Also note that the parking at Cathedral Cove and Hot Water Beach require payment.
All in all and awesome stay!