Mariam is such a lovely host. She received me with all the care I would have expected from a member of my own family.
The house is great and has everything you might need.
The neighborhood is a little distant from the centre of London (region 3, almost 4), but there is a bus garage nearby (5 minutes walk distance) and integration with a underground station as well (about 15 minutos walking, even less using the bus). I would personally recommend taking the bus number 6 for tourists, as it takes you to the centre of London within an hour, stopping at the most known streets of the city.
So yes, I do recommend staying at Mariam's wholeheartedly. Great atmosphere, amazing people and a really calm neighborhood. Would certainly stay there again!