We stayed at Prudence's place for a month. The apartment was clean and felt very new. Communication with Prudence was always quick and easy, which was a great plus. We also enjoyed the well-working washing machine, good water pressure, well-stocked kitchen with decent kitchenware. The bed was a bit too soft for us.
The apartment is small, just under 40 m2.
The main downside for us was the need to keep windows open to allow for proper ventilation and this made sleep difficult due to constant noise from the street below. I suppose in colder months this should not be a problem.
The apartment building is in a diverse neighborhood outside of the city center, so be prepared to travel 45 minutes to any sites. There is a wonderful park right at the doorstep. A short 15 minute walk is a very nice neighborhood of Chiswick with many cafes and restaurants and more.