The team who host this were very nice but alas I did have a few disappointments about it. They were very helpful and for example once I locked myself out in the afternoon and within an hour they had left a new key for me. But the hosts switched apartment about four hours before I was arriving so i didn't really have a choice. New place was similar in same block but not quite so highly rated or sunny. So i was a bit disappointed.
Keys were not where they were supposed to be. I was also concerned that keys labelled with unit number were left in an open drawer in an unattended lobby where the door to the street was usually open. I didn't feel very safe. Then host instruced me to open safe and check where I could see many labelled keys but not for my unit. Again it made me worry others may abuse this. There was a huge party going on with a lot of intoxicated young people on the ground floor as I sat there doing this, to add to my concern. They kept walking past me and thought i was a doorperson and drunkenly thanked me or talked about me. Because I sat there for about an hour then waiting for someone from the hosting company to drop off the key. This person was very nice but it wasn't a relaxing or easy way to arrive. It was about three nights before I could relax that somebody wouldn't use the key to come into the flat.
Unfortunately there is major construction going and this starts between 7 and 730am. I sleep with earplugs but it was impossible to sleep after this time. There was also scaffolding on the back of the building - which wouldn't be quiet either, since there is a road under the building to get to the construction site at the back - but i was too scared to sleep in this, even though there might have been less street noise, because there was a ladder directkly up to the window as well as scaffolding outside both windows. Other than this, super convenient for Charing Cross. So close you can hear the train announcements (super faintly, not a problem at all). Really good for West End and Royal Parks. I loved this about it.
I think the original flat I booked might have been more cheerful. I didn't love the decor, there were some touches that weren't my style like candles that used to be scented but now smell rancid (with a note not to burn them) and the kichen was dark behind a wall, with only a skylight etc. There were lots of cypboards but mysteriously about a hundred towels filled them, maybe they store the towels for the whole building in them. Not really quite up to scratch and I wish I'd stayed in a fancy hotel instead honestly. Though the staff here were nice and very helpful in person.