I would've had a nice stay if it wasn't for the noise during the night!
The apartment isn't soundproof. Especially being on the ground floor, I heard everyone walking in and out of the building, up and down the stairs, and slamming the door on the way in/out. I could hear footsteps, toilet flushes, and conversations from the floor above. I didn't get one night of good sleep and shortened my stay because I couldn't handle it (and I'm not even a light sleeper).
I of course let Goncalo know about my experience, and he tried to help by asking the neighbors not to slam the door on the way in and out, which I hugely appreciated but I still was kept up at night. The apartment is not at all soundproof and I wish I had known this before booking because I would've reconsidered my choice to stay here.