Lovely apartment and I would stay there again with someone. It’s very new and clean, the bed is comfortable and it’s quite spacious for 1-2 people staying there.
As other reviewers have noted, you will need to walk your luggage up 4-5 flights of stairs so I wouldn’t recommend this for anyone who has injuries.
The neighbourhood is lovely although a bit too quiet at night time when walking from Victoria Station.
A strange quirk that the heater automatically turns off between 12-8am so it can get quite cold in winter. Unsure if this is typically in London but I would recommend another blanket to help keep warm.