Excellent place for quick stays to maybe a couple weeks depending on how much stuff you have. The location is perfect. There are plenty of cafe bars to go to in the evening. Even at 2am there are people out and about so it feels safe. Despite the amount of people around, the apartment is quiet.
This is not a place for kids as the loft does not have a safety bar if they go up. Also, if you are over 6ft (182.88cm) the bathroom wont be as pleasant as the ceiling seems to be about 6ft high.
Other than that, this is an amazing location and stay. Sirra and Fanny were excellent communicators and, even provided some trip suggestions to make the most of your stay. I would stay here again 100%.