Marta's place is really great. it's basically a huge apartment turned into different airbnbs. The shared spaces are really great and big, the location is unbeatable, right by Callao station. Having the bathroom with the room is great but also a bit tricky as you have to be a bit careful when showering and at times it feels cramp.
I also couldn't find the A/C remote which I inquired about but was told to just look for it but couldn't find it in the end. Might want to check that the remote is around when checking in.
Overall though, the place is great and it's a great value given the location and how safe it feels. I would stay again and recommend it to others.