Walthamstow is a really nice little town-within-London, and Yasmina's flat is really easy to find and close to the tube.
It is also beautifully decorated and clean, and best of all I had an amazingly good night's each one of the 4 night's I stayed!
The room is small but perfectly formed, and Yasmina was super communicative and helpful even though I barely saw her due to me being at work and out a lot.
I'd highly recommend Yasmina's room!