I had to work from the flat all week, and the WIFI was extremelyy fast and reliable (was a key point for me).
Flat is very well located, very central. The value for money is excellent - exactly what Airbnb should be. Jose Maria is very responsive and fun to communicate with. Everything is as advertised. I had to check-in at midnight and the auto check-in option was a life saver, key in safe box, easy. Big Carrefour express nearby so we had all we needed to eat and snack on.
Only negative to consider, but Im sure its no surprise to you given the super central location... is the noise at night. Thursday- Saturday night you have the folks walking home from being out and drinking. So you can hear it all. My friend slept through it all, but Im a light sleeper and it woke me up a lot because it sounded like they were in the room with me lol. But again, you are to expect this being so central. Most older buildings in these small central streets will have the same acoustics.
But I loved it 99% of the time - you wont regret booking!