An amazing place to stay. The people are friendly, the rooms are clean (only the bathroom could use a little extra swipe once in a while ;) ) and the house is quiet at night, which was especially important for me since I had to get up early for work. Whenever there was an issue (rarely the case), I could easily contact Ivy and she would take care of it.
For groceries, you can take the bus to Ilford (only a 2 minute walk to the station), and the station to Central London is only a 20 min walk away - or 5 min by bus.
If you have to stay in London and don't want to spend a fortune on one of the places in the city, I can definitely recommend Ivy's place!