The flat is located in a good area, next to a bus station and next to Marble Arch Underground Station and walking distance from Hyde Park and Oxford Street.
We were excited by the view of the flat, at eleventh floor.
We didn't meet Sam, but we were greeted by Shaq (Sam's colleague) who was really nice and made himself available for any question/request we had.
The downside of the flat was the cleanliness of the kitchen, they should work a bit more there. The bathrooms and bedrooms were clean.
Overall, it was a pleasant stay. I would recommend it.