This flat is really great. The apartment is absolutely huge! It was big enough to ride a bike in it. The atmosphere is very cosy. The location is perfect, 15 min walk to every important historical sight. I was really impressed with an app based lock that allowed you to open the door without the keys, however its good to have the physical key with you just in case.
The heating was not working upon the arrival, but that was sorted out super quickly and apartment was super warm during our stay, which is important in February.
The only thing that was so so for me, is that during nights there was a lot of party going outside. I had trouble sleeping even with earplugs. However my aunt and grandma did not hear anything. So if you are a light sleeper like me, you will really need earplugs.
Regardless of the noiseness, I really recommend this flat and Laia as a host - both are great!