Clare's place was clean and spacious. We are a family of 4 and it was good for our adult sons to have their own rooms, and the second bathroom was nice. The kitchen and dining area is big. The only negatives was that there are a lot of stairs (which it's hard to tell from the pictures) and the place was a little more worn than the pictures convey (but it wasn't bad).
Clare was a great host and very responsive. She let us check in early due to our early flight arrival.
The neighborhood (next to the Chelsea football stadium) was quiet and felt safe. The tube stop (Fulham Broadway) was a 10 minute walk. There were lots of shops and a grocery store near the tube station. The tube stop was on the District line, so it was easy to get to the main tourist sites. Be aware that Chelsea is a bit outside the main part of London, so schedule travel time into your days.
Overall, we were happy to stay at Clare's and enjoyed the peace and quiet after a long day of touring.