Cristina's place is great, very clean and tidy with everything you need. Location is very good, walking distance to city centre and other amenities Madrid has to offer. Various tube stations connecting with different tube lines as well within less than 5 min walk.
Both check-in and check-out very flexible.
Cristina was very attentive and helpful, always trying to make the stay as comfortable as possible.
Really good place to stay in Madrid, I'll definitely stay again here if visiting again and highly recommended