Luisa was very kind, extremely helpful and openminded. The flat is perfect, and it has everything one needs to have for a longer (or shorter) stay. It is centrally localted only 3 minutes from Holborn Underground station, and one can walk to Soho, Covent Garden, City and other sightseeing spots. The flat is in a really nice and quiet neighborhood, with pleanty of good eating places. Also thanks to Luisa for her good suggestions for eating and other activities. I highly recommend Luisa's place and I will certainly try to book her flat again in the future.