There is good and some not-so-good here.
GOOD: The location is really nice, a short walk to a tube station, and there is a market and some cute restaurants nearby. The apartment is clean with ample space for a London flat. The check-in instructions are clear but don't specify which unit so I had to call the owner. I spoke with her father who was quick to respond and was very helpful is guiding me to the correct apartment.
NOT-SO-GOOD: The smoke detectors are far too sensitive, multiple alarms went off every time I cooked, even with windows open (in December... brrr). The Wifi is so bad it might as well be non-existent. The upstairs neighbors are loud, you can hear thumps all night on the ceiling, as well as traffic noise (which is not the owner's fault). I was most disappointed when a man came by at 9am on check-out day, knocking loudly on the door to inquire if we were checking out. Shouldn't this be an automatic (invisible) process that happens at a normal check-out hour like 11am? So confusing, there are some kinks to work out in this system.