We did not have the pleasure of meeting Marta, but we can assure you that she was a great host. She was effective in organizing check-in and solicitous in communications. Marta's apartment is a lovely little apartment with all the services we need. The position is very close to a tube station in zone 4. Another tube station (zone 3) can be reached by a short walk or by bus stopping in front of the building. Central zone are reachable in an half hour about. There is also a supermarket in front to the residence area. We enjoyed our staying in London and Marta's apartment was be a great solution as a base for our visits.