Carmelo's apartment was a good size for two people. It was central and close to public transport. Although I didn't get to meet Carmelo as he was out of the country, we got to meet his son who was kind enough to wait at the apartment a bit longer due to a delayed check in. The apartment is located on the ground floor so no need to climb stairs which is a added bonus, especially for people with lots of luggage! I'd definitely recommend Carmelo's place if you're thinking of staying in Madrid!