Perfect flat for a two children family. We didn't met Virginia but she was in touch with us and the arrive and leave procedure is easy and secure.
The kitchen is full equiped and have a lot of little things to make your day a day easier. Good wifi Internet access. Very quite flat, no noises. Good transport to the main places in London. We used the bus (a stop next to the building), the overground Imperial Warf Station (it takes 3 mins from the flat) and interconnected with the undergroung network.
Absolutely I'd like to stay in a similar flat when we travel to other cities.