We were a family of 4 staying in Fernando's apartment for 4 nights. It was a great base and the location was also excellent - not right in the centre but very close with supermarkets and restaurants around. It is about 20min walking from the main train station but would probably be more suitable to take a taxi.
The space itself was small, a little smaller than we expected. It is perfect for 2 people, in fact probably quite large. However, for a family of 4 adults it was quite cramped. I am not writing this to deter anyone from booking this venue, only to say if you are more than 2 people think about how much space you need and if you are ok to share a single bathroom that is in the only bedroom.
Apart from that, every thing was nice. Sofa bed was comfortable and the kitchen is well equipped. The bathroom could be improved though - as other travelers have noted. The bath area leaks into the bottom which causes the floor to be quite wet.
Overall it was a pleasant stay at Fernando's and my wife and I would not hesitate to return.