The space is beautiful. My girlfriend and I stayed here 6 nights and had an amazing experience. The communication with Maria was easy. She was there when we arrived and took the time to give us a tour, explain how to use everything and made a number of useful recommendations (everything from restaurants to where to find the nearest taxi).
The neighborhood was great - full of bars, restaurants (Dar Poeta is the best and it's like 5 minutes away) and shops. Literally right outside the door and you're in the thick of it at night.
The space was really nice and clean. There was a living room, bedroom and spare room with a pull out sofa. The kitchen was modern and functional.
The bedroom was the second room off the street which was nice because the street was lively every night. The bed was nice and the pillows were especially comfortable. We used the washer a few times and it worked great. The shower pressure was good and it was always hot.
If you're looking to stay in a safe area with tons of stuff to do at night, in a big comfortable space that's clean and functional - you should definitely stay here.