As mentioned by many others everything was pretty ok.
The apartment is a bit old but beautiful in its style. We liked the area in which it is located since it's a quarter full of life, bars, restaurants and shops.
The apartment was well equipped, nothing useless but all the necessary items available.
The bathroom is a bit small, but ok.
We liked the keyless entry and check-in possibility, no need to carry keys around.
If you don't mind a five-minute walk, it's also well connected to buses and the Metro.
We would not recommend the local TMB App, especially don't buy tickets with it since you have to pick them up anyways at a station and only Metro stations have the correct machine. Better use Google Maps and buy tickets directly on the ticket machine.
The only downside was the noise which was a bit much, coming both from the street (people talking at the bars, cars) and especially from the other apartments, the people from above seemed to shift their furniture every evening :)
If you are a light sleeper, bring earplugs. But that's nothing which cannot be handled.
All in all we had a good stay.
Pere was always easy to reach and flexible on short notice, problems could be solved right away.
Thanks!