I had lovely two weeks at gabriel's place.
everything was as described and the rooms are really cute. I had a room in the back and it was really calm.
the location is fantastic - you can have a jogging run in hyde park or regents park in the morning and then you'll find a great place for breakfast just a couple of minutes away. There are also great restaurants in the neighbourhood.
Oxford Street, Baker Street are accesible in 5 min by walk.
all in all - i'll definitly come back when i'm in london.