We really enjoyed staying here. We didn't end up meeting Graham as we were only there two nights, but they key was left in a secure location with easy instructions.
The flat was perfect for our needs and very clean. He was also kind enough to have fresh bread and milk available on arrival as well as other condiments.
It's a fair walk into the city to the harbour itself, especially walking up Hill home after a long day exploring the city, and the bus only comes once an hour at weekend. But that being said if you plan carefully it's not a big issue.
I would recommend this place to anyone visiting and looking for a base to explore.