We stayed at Charles's and Bella's for about 13 night from nov- dec 2015, it was amazing. The flat is very comfortable and clean, it was exactly how they described it. The bus stop only stairs away lol from the flat and you can reach wherever you want with it. Or you can simply cross the street and other bus stop is there to take you to where you want. They also left a guid book with all the instruction and recommending restaurant. For my advice portobello market is only minutes away from the flat, the market worth your visit. Finally I really would like them for such wonderful flat and we highly recommend it.
Emma