Helen is a great host, and the house is located very close to the city centre, which is just a short walk away (or a fun ride on the river taxi).
I stayed in Bristol for just over a day (for a concert) and came fairly unprepared to the city: in a few minutes Helen pointed out the best places to see in town and how to get there. I enjoyed our chats, though brief. I'll be back.
The house is very warm and the host very welcoming: you'll have a lovely stay!