Probably one of my best AirBnB experiences!
Rosie was an amazing host, she is nice friendly helpful and also very organized. Her flat is located on a quiet floor in a residential building in a nice and quiet area, just next to the park and with good bus connections to the rest of the town. It's also walking distance from supermarkets, bars and restaurants.
With regards to the room, it's a good size bedroom in a split level apartment, ideal for 1 or 2 persons with a very comfortable bed and a nice view over the Thames by night. I would definitely recommend Rosie's place to both couples and people travelling on their own, for short or medium stay.