David's place is good for those travellers who wouldn't mind rather ascetic accommodation. Conveniently located in a quiet, green district of..... it has good bus connection to the city center. It takes 10 minutes to get to the nearest RER station, which is very useful, if you go to the airport. It's just 5-minute walk to the nearest supermarkets and local shops.
The flat is small but there are almost all necessary things there a fridge, a cooker, microwave and kitchen utensils. The only thing I would recommend to take with you-hairdryer and shampoo.
David seems to live a very quiet life, so you shouldn't make too much noise while staying in his flat. He is very helpful and always available at WhatsApp. Don't hesitate to contact him and ask questions.
In general I really enjoyed my staying there. It'll suit you perfectly well, if you're going just to explore the city and not to spend all the day in the flat.