Staying at Yvonne's has been lovely. I have been here for 3 months while completing an internship in London. It really felt like home for that time and not like 'just' an AirBnB. You always have someone to talk to, but you can also enjoy the privacy of your room. Staying for quite some time it was nice having an en-suite.
So I can recommend Yvonne's home for a long-time but also a short stay. You get space in the fridge, the house is nice, clean and quite light. The area is lovely, basically living in a park - makes it really quiet.
I will 100% be back, when I visit London again.