We had a fabulous stay at Mary's place and can highly recommend it to anyone!
Mary provided us with lots of information in advance (e.g. detailed directions from the airport to her house) and was always available for questions before and during our stay.
The room was just as pictured - very clean, roomy and modern - and had all kinds of amenities (Mary even placed a Germany travel guide and an umbrella in our room :) ). The Wifi in the room was very good.
We had access to a shared kitchen that turned out to be very well-equipped (coffee, tea, cereal) and convenient.
We also liked the surrounding area - the city is only a 20-minute DLR/tube ride away and supermarkets are within walking distance.
Thank you Mary for making our stay very pleasant!