If appreciate quality and cats, look no further! You can expect a full BnB that you happen to book via AirBnB.
Reasons why I would recommend this:
+ You can use 2 separate rooms and both beds are amazing. Isabelle writes the sitting room has a "double pull-out bed ", but really it is so much better than that. It is a bed, with a proper 1 piece mattress, and it happens to fold it into a sofa. You do not sleep on sofa pillows, you sleep on a good mattress.
+ Private bathroom
+ Near tube and busses
+ Quality, quality, quality. Good linnens, thick towels, body cream, real fruit at breakfast and even some fresh flowers (but that may be a seasonal thing).
+ Lots of books about London. Lots of David Bowie as well ;)
+ Rooms are fully decorated and have a great vibe.
+ Isabelle is a very attentive host
I would recommend Isabelle to my mom. The only reason not to go is if you are very allergic to cats.