Can't say enough great things about Marek and his place! The surrounding area of Fulham is charming and family-friendly with lots of cafes and eateries. The Tube is about a 10 min. walk from the ground floor flat (15 if traveling with kids), but only minutes from the closest bus stop. It takes about 25 min. plus transfer time between lines from Parson Green station to downtown (Westminster). A nightime taxi back is about 20€.
Marek is a fantastic host! His recommendations about the local area are spot on, and he was extremely helpful upon our arrival. Even gave great suggestions for our return to the airport and called a taxi ahead of time to facilitate our return transfer.
The space itself is large and perfect for families. Because it is on the ground floor luggage is not an issue. It even features a quaint garden perfect for breakfast. Additionally the kitchen was well stocked with supplies and amenities.
The only thing to be aware of: for light sleepers or kids the bedrooms do get some noise from outside/adjacent units. We slept through it, but it is something to be aware of.
Definitely recommend.