This is a very high-end neighborhood, very quiet, quite pretty. You won't meet the neighbors, so if you want privacy this is nice.
The flat is clean and comfortable; the beds are very comfy. Compact kitchen for meals at home. New dining chairs are needed as these are the only uncomfortable items in the flat. The flat has a nice layout. For two single travelers wanting separate beds, it is perfect.
It's a basement/garden flat (that's how we'd describe it in the US) but with a very large window that looks up to a little garden so there is lots of light. It's at the back of the building so there is privacy and no street noise.
Ollie's cleaning person, Cidalia, is very helpful. You will need to ask her how to work the washer/dryer if you aren't familiar with a steam model.
It's convenient to the Knightsbridge station; there's an M&S nearby for groceries.