Lynette & Wayne's place is very good value and highly recommended for stays of 1 or more nights in Greymouth.
It is like a 1 bedroom flat really. A very nice breakfast is provided but cooking materials are there if you want to prepare your own meals. The unit has been tastefully refurbished and is spotlessly clean. The bed and pillows are very comfortable and the shower is excellent.
You won't do better than this in Greymouth.