Sweet little place, close to the station and the shops. On the express bus route from Heathrow Airport.
And a note re: the host: on the way from the airport I realised the directions I'd downloaded were useless AND the 4G on my phone failed. I called Miyoung and she came part-way to meet me. That was very kind and much appreciated after my 18 hours of travel.
I hope Miyoung's place is available next time I'm in London.