Barbaras flat is in a very new area. The metro station (Victoria line) is quite close, so even when the flat is not in the center you have good connections to the city center (20-30 min), Kings Cross (10 min) and Stansted Airport.
The room is perfect for 2-3 people. We got two mattresses, so enough space for us. The flat is very new and the kitchen well sorted.
We met Barbara a couple of times in the mornings and she was always very nice. So its a nice place to stay.