We fell in love with the pictures online, and this apartment is exactly as it looks in the photos, actually even more beautiful. It is a charming and magical space. Every corner is beautifully decorated and the balcony is full of lush, gorgeous plants including lavender that smells really nice. We didn't want to leave.
We did have bit of an issue during our stay in that the air conditioning wasn't working well when we arrived, and it just happened to be on a 105 degree day, but María and Mylene were communicative and got the issue fixed by noon the next day. The air worked perfectly after that, and the space was nice and cool.
As far as the basics, the apartment was nice and clean, and the bed was comfortable. The shower was hot with really good water pressure. Even though Malasaña is a neighborhood with a lot going on at night, the apartment is perfectly quiet at night because the balcony faces a quiet court yard. We loved this place and would totally stay here again.