Had a great stay here. The apartment is located in an older building but has been renovated very nicely - everything was very clean, the furniture is all quite new and is nicely decorated. The location is very central to everything you want to get to. I would say immediately surrounding streets are not necessarily the nicest in Paris but still very safe with lots of restaurants around etc. Only small issue I had was the WiFi at certain points but it wasn't a huge problem. As others have noted, people on the stairs can be loud but apartment in general is very quiet.