My wife and I stayed at Rachel's for 4 nights in Jan 2023. Rachel is very friendly and knowledgeable about the area.
What is effectively a separate "granny flat" is very clean. It is a well setup base for visitors to the area. The flat has both heating and air-con. The main lounge-diner and the master bedroom have huge windows at the front yet are not overlooked. The small bedroom at the back has no windows.
There is a washing machine and powder. There is plenty of room for the clothes horse (provided) in the main room, for when you can't place it outside on the covered balcony.
There's a supermarket and chip shop 400m away.
The hourly ferry to Lyttleton, takes less than 15 minutes to cross over. The ferry joins the Christchurch bus network. The bus takes half hour to the centre of the city. Fares seemed very good value. We chose to use public transport for our day-visit into Christchurch rather than drive back again over the scenic (but winding) pass.
We would happily stay again.