We stayed at Mathilde's place for ten days in July.
Communication: Easy communication throughout the whole process, from booking the place to check out.
The house: The apartment is well-located near Shadwell train station and within walking distance to hip areas of east London. The penthouse is quiet, bright, very spacious and enjoying great London's great skyline view from the different balconies. The house is well equipped with all the amenities needed for a perfect holiday, including fast internet connection, all kitchen appliances, etc.
Highly recommended!