5 star treatment for much lower price.
Lesley and Derek are great hosts. Social without being intrusive and so helpful if you have any questions.
The place itself is a little way away from the city center, but because of good public transportation within Christchurch, that was no problem. Also, we recommend the pick-up/drop off service from/to the airport.
Their house is great and clean and the bed that we had was much better than the one we have at home. There was also a breakfast that was a surprise to us (it's probably mentioned on the site)!