We had a great time staying at Maria and Juan Miguel's place. Juan Miguel received us at our arrival. He was very friendly and gave us a lot of useful information about the city, things to see and places to eat and drink.
The apartment is well located, at the city center, close to the historic places and the riverbank. The apartment was very clean. It is cool during the summer and has a lot of nice things, like a speaker to listen to music in the shower, a home theater, good WiFi, very good pillows, etc.
I highly recommend to stay at their place