I've stayed two nights in Cathy's smaller room, which is small but lovely and comfy nonetheless.
The house was clean, cosy, and full of character, and Cathy did whatever she could to make me feel at home.
Its location is outstanding: very close to the Holloway Road tube station and just a quick ride to St Pancras.
Just a minor nitpick: the small room cannot be locked from the outside.
It wasn't an issue for me, but it's something worth mentioning.