The room is exactly as described. It was larger than expected. We were welcomed warmly and given a tour of the house. There are several bathrooms, which can be used by all guests, so we never had to wait for one to become available. A nice touch was the fresh fruit that was up for grabs in the kitchen and the tea making facilities. The house is located on a quiet square. In the room, you can hear the slight rumble of the train (but it never kept us awake).
The location, some 15 min walking from St-Pancrass & Kings cross station was great for us. We also walked from the house to Covent Garden (30 min) and other places in London. Even at night we felt safe doing so.
The hosts kindly let us keep the room until 4PM on the day of check-out, which helped greatly since our train only left at 5PM.
I would definitely recommend this place.