We've stayed at Bella's place for an entire week and it was great!
Bella was very communicative, the house was in great location, located in a quiet lovely street in the heart of Kensington and close to the tube.
The room itself was exactly like shown in the pictures, clean, relaxing and comfortable, plus kitchen equipment left by Bella. the perfect place after a long day of walking and sightseeing.
Note that there is no TV if you like to just watch it at the night, and that the internet is quiet slow.
Overall - highly recomendad, great responsive host, good value for your money, and very nice apartment.