Five starts for the location -it is great, close to loads of things within walking distance.
The apartment is small and cozy and was enough for two people, don't think I would recommend it for 4. Rachel and Mark were very quick to respond which was nice but unfortunately, we had an internet issue which was not solved in our two weeks stay. The wifi didn't work for us which was unfortunate when you are in London during a lockdown and work from "home". We've picked this place not only for its location but also because the description specifically talks about fast internet...
Check-in and out is also a slight hassle if you travel with luggage as you have to walk 10min to a deli.
Other than that we would recommend the place.