First positives: very central location, very responsive host although I never met her (helped with late check in and tried to fix some flaws the day after my arrival), the place is definitely cheaper than average in Madrid.
Negatives: the studio is tiny, looks very shabby with cheap linoleum, spots on the furniture and literally no natural light. It faces inner yard (not uncommon in Madrid), so it is always dark. The lighting is very artificial and the place is not cozy at all. I had issues with opening the middle door (the host duly oiled the locks but I still had troubles). I did not use any of the kitchen appliances because they didn’t look clean enough. Shower curtain had mould on it.
I would not recommend this place. I felt like staying there as little as possible during my trip.