We had a great stay at Max's apartment. It is very stylishly furnished and he has been inventive with a small space. The flat is in an old convent that is being converted but we weren't disturbed by the noise the weekend we stayed. The flat is brilliantly located - we didn't take the metro at all as everything's within walking distance (5 mins to 3 different metros and 15 minutes to Plaza Major). The area where the flat is located is lively and interesting but feels safe. We arrived late at night and it was easy to find. Finally, Max was so helpful - he was waiting for us when we arrived and spent a long time giving us tips for where to go as we'd not visited Madrid before. We also knew he was easy to reach if we needed him during our stay. A thoroughly enjoyable trip to Madrid and definitely enhanced by where we stayed!