We enjoyed our time in London using Boris' apartment. It met our needs perfectly. It is wonderfully close to the Tube (3-5 minute walk) and also very near some wonderful restaurants and pubs.
It was very clean and we felt very at ease while staying there. We were a bit early and our hosts were willing to accommodate us.
While small in area (which we knew going in), the benefits of this place are that there is a 2nd sink and mirror outside of the bathroom. Also, there are multiple USB outlets for charging devices at night.
We could not have enjoyed our stay any more! Thanks Boris!