Well - what a spot! A perfect location, including for a bit of people watching out of the window with a cup of tea in the morning!
Plenty of space for two and the sofa bed is of good quality as is the main bed. We had enough sheets to change during my week long stay.
If you are super sensitive to noise then bring ear plugs as the front door to the apartments slams every time people come in and out and you will hear people coming up and downstairs which can be loud at times. However, the windows must be excellent quality as noise from the street is very minimal indeed.
We had an issue with the aircon / temp which I understand was addressed during our stay. It got a little warm with the windows shut.
Overall a lovely apartment and stay in a beautiful part of London.