Camille and Chris were the most thoughtful and helpful hosts you could wish for, and sent us lots of helpful info in good time before our trip so there was no anxiety. The flat is lovely and spacious with all you need including in the kitchen. There is a nice east-facing balcony. One bed has a soft sprung mattress and the other (king-size) a harder foam mattress, for those who need to know about the beds. With double-glazing closed it's reasonably quiet even at the front, and it's very quiet in the back overnight and in the morning.
The flat is a bit further outside London but in a decent area near West Dulwich, Norwood and Crystal Palace areas which have a few attractions in their own right. Connections by bus and train are good and close by.
Two considerations - as the flat is 3 or 4 floors up without a lift and in a slightly hilly area it would be best for those with reasonable fitness and mobility. And in summer it gets very very warm as it is on the top floor and the building has a heating system that makes the place warmer than outside even on moderately warm days. So if you can't stand higher temperatures this may be worth bearing in mind. Again, Camille was very helpful in providing two fans to help with this.