This was our first airbnb experience and it was very positive. Maria was very quick to respond to questions, very helpful and very pleasant to deal with. She offered assistance with transportation before we arrived; the instructions to get there and check in (with photos) were perfect, the apartment was very well equipped with thoughtful touches like extra sheets and towels, hair dryer, iron, and basics to make a meal in the kitchen, etc. We asked about getting a taxi to the airport for our early flight the night before we left and she quickly made it happen. The taxi driver was waiting at the pre-arranged time the next morning.
The location was ideal for us - very well situated to walk everywhere while being just on the edge of the touristy centre. There is a great coffee stop across the street, and a variety of little restaurants and coffee shops around on the pedestrian only sections. Be aware that by virtue of being close to everything, there is street noise at night, particularly on the weekend from a couple of nearby bars, as well as occasional loud motorbikes and the like. But that goes with being in the heart of things.