Sheryl is a nice lady and good host with two beautiful cats. We had a great stay and especially enjoyed her huge DVD collection. Even though it's not in the city centre your basically next to a huge shopping mall and the 40min walk to town is very nice cause you walk in parts through the Botanic Gardens.
Unfortunately, the room and bed are quite small for two adults with luggage. Contrary to the given details, breakfast wasn't included for us.
However, it's still a great place to stay if you're in Christchurch!