The studio is really cute, practical and in a great location. My sister and I stayed 3 days/nights and didn’t have to use any transport within Madrid, as the main neighbourhoods (La Latina, Chueca, Malasana, Lavapies, Atocha) we visited were within 10-20 min walk.
Eloisa was lovely. Our flight arrived after midnight and she booked a taxi for us with a driver waiting at the arrivals lounge (that’s great as you can skip the taxi queue outside the airport), and waited for us at the apartment to hand us the keys in.