Marta was very friendly and helpfull, she gave us good tips where to go, where to find good tapas, paella, places where local people go, where to find good shopping areas etc. We followed her suggestions and they really where worth it. Communication with Marta was smooth, she replied to mails very fast and was well reachable. Appartment was nice and clean. Only little minus was bad smell in the bathroom. Location is excellent, you can walk to many sights, there are good restaurants/bars nearby and metro is also close. Would definetly recommend this appartment and rent it again if we come back to Madrid some day!