I had a good stay with Janina for about a month. She is very lovely and friendly, great communicator and a good host.
The place is s described and looks as it is in the photos.
I did find it a bit noisy for my personal taste; paper thin walls and loud neighbours with kids and a dog. ( not Janina's fault at all) Especially when the other room is rented, you can hear quite a lot. Perhaps its normal for London.
The house is located in a very nice neighbourhood, with couple grocery stores 20 metres away, and a really good Thai restaurant. Lots of nice little pubs around with food also, and very close to Dalston High street.
I would definitely recommend this place to others :)