We loved staying at Rachella's place! The room is really tiny but very nice.
Rachella was extremely helpful with us arriving at different time and she managed to let us both in. Also we got the biggest choice of food for breakfast, good shower and very comfortable beds.
commuting was also very convenient. 45 minutes from door to door to Covent Garden.
The only thing to mention is that the place where you can hang your clothes is basically the only shelf and the mirror behind it. So either you put out your things on railings and then you can't use the mirror or your have to keep them in the suitcases under the beds. For us it was not a problem, but may be worth noticing that for anyone else.