Our experience with Nader and his flat in Madrid was absolutely fantastic! His flat is newly renovated, super clean and equipped with everything you may need to feel at home. The kitchen is supplied with basic supplies like salt, peper, oil, tea etc, so you don't have to spend money. Nader even provides laundry and dishwasher detergent :). This is above and beyond in my opinion.
Nader's flat is conveniently located near subway Callao or about 5 min wal to Puerta de Sol. The location is very central and you can walk to any important site. There are 2 supermarkets in the area, which Nader pointed out.
A few words about Nader as a host.
Nader welcomed us in his flat with a big smile and positive and pleasant attitude. Then he spent about 30-45 minutes introducing Madrid on a map, pointing out important places like supermarkets, restaurants with good and affordable food etc. His tips were very helpful and helped us to have a better stay. Nader also was very quick to answer to our questions over the AirB&B chatt feature. There is no question that Nader did not have an answer for us. He even organized an affordable transfer to the airport with Jose, who was also very pleasant and reliable.
Overall fantastic stay with Nader, we highly recommend his flat and when we are back to Madrid we will use it again!