Fantastic location - right in the middle of London. This is a very modern, professionally managed studio apartment with a smooth check-in process; great online documentation (including things like a manual for the washer/dryer, dishwasher, TV, Nespresso, ...); and excellent, speedy WiFi. The bed was comfortable; the heating effective; the shower powerful and plenty hot. The main thing to be aware of is that there's no lift, and a fair number of stairs spread out over multiple flights - but that's about the only thing I can think of to report on.
Communication was great. For example: I selected my apartment using the photos on AirBnB, which showed a total of 5 windows; when I checked in, the apartment I'd been sent to only had 3 (the building alternates layouts on the different floors). It seemed that the wrong photos had been submitted in the original listing by mistake, and Dom was kind enough to move me down a couple of floors and into the apartment shown in the pictures.
Even though the apartment is right above a pub, there's relatively little noise from people on the street - the main thing I noticed was from the garbage collection in the mornings, but that only lasts a few minutes. (One exception: the pub downstairs was turned into a movie set for the week, which required scaffolding - but I think that's an unusual occurrence!)
Highly recommended: I'd happily go back.