I had a great time in Marta's flat, and she was a fantastic host in coordinating my arrival and making sure I had everything needed for the stay. The flat was great - very stylish and exactly how depicted in photos - and the location was great as well!
They were very accommodating of my slightly late arrival (10pm), and the AC and wifi worked perfectly.
The only minor thing I would note is that toilet paper isn't allowed in the toilet, and must be thrown in a small bin. This didn't bother me as I used a toilet elsewhere, but mention it as it might be important for some people to know in advance.