My husband and I stayed at Sergio's place and it was perfect location. Walking distance to the metro...and many great bars and restaurants! The apartment was located on 3rd floor walk up which was great for us- in NY we live in a 5th floor walk up- so we didn't mind much! Sergio was an amazing host super attentive and was nice enough to let us stay till 5pm since our plane left late. All in all a great experience in Madrid.
Thank you Sergio :-)