The apartment is really pretty and it was excepcionally clean.
Location is good (very eclectic, if you are from Madrid...this feels like Malasaña) though parking is a pain. Even coming with uber we had to drop the uber like 3m away because they got in such a small street it as impossible to continue. I'd go to Santa Cruz next time.
The entry of the building is almost hidden and it feels a little iffy, but it's part of the charm.
The team that manages the apartment was available at all times and they were really helpful.