I've stayed at Manuel and Cecilia's house for around a week and it was very nice. They are absolutely kind, friendly and very helpful for everything you need while staying in the house and beyond. The room was lovely, and everything was perfectly clean. The house is nice, I could also use the kitchen for breakfast and some dinner, and they also have a beautiful garden with a friendly dog.
The area is very well connected, with several buses going to the centre, and the underground stop, Seven Sisters on the Victoria line, is 5-10 minutes walk (it depends on your speed).
I definitely recommend staying at Manuel and Cecilia, it was a very good experience.