The description was not accurate (appartement could sleep 2 maybe 3 max if you don’t mind à very hard sofa but not 4 as advertised) but the owners sorted out the issue for the last 2 days of our stay.
The door was extremely hard to lock and that was still the case after maintenance came.
The apartment is very nice but quite nosy (road traffic, sirens, other tenants). This woke us up several time during the night (it would have been fine with earplugs)
Otherwise is not far for earls court.
The owner did not respond the first night but were very diligent the next day to sort out issues.
In case this is useful for other Travellers : We had a car and were able to park it nearby using a parking app.