I highly recommend staying with Katrina, the room was a lovely loft conversion, warm, clean and comfortable, with plenty of towels and soap/shampoo supplied. The bathroom has leaning walls over the toilet, so most suitable for people of average height or lower.
There are two frequent buses which will take you take you straight to princess street in less than half an hour. Breakfast was very generous with a good selection.
Katrina was a great hostess, gave me the information I needed before the stay and was very friendly and welcoming. I left my glasses behind and Katrina very kindly offered to send them.
I'd recommend anyone to stay with Katrina, in particular lone female travellers.