We really enjoyed our recent stay in Madrid at Milgros and Raul's place. The apartment is lovely and was big enough for our group of six adults. We absolutely loved the location and in contrast to other reviews thought the area was a perfect base to explore the city from. La Latina is really vibrant with plenty of tapas bars and nice squares and it's an easy walk to a lot of the main tourist attractions.
One thing to note is that there is only an A/C unit in the living room, close to two of the bedrooms. Although this wasn't a problem for us it may be something to bare in mind if you are visiting when it is very hot. Overall we thought the apartment and hosts were great and we would definitely recommend staying here.