I spent 18 days in Josephine apartment, because my daughter, living nearby, had her first son in April.
The apartment is very nice, quiet and equipped with everything you need, like a fantastic washing machine that washes and dries your clothes perfectly in less than one hour.
Josephine is a fantastic host, always in touch, solving immediately every small needs. I recommend this apartment if you want to stay in a quiet area, with everything you need nearby like Heathrow Airport.