I spent 2 nights with my famliy including a baby in the apartment. Our stay was oké, but next time I would book it with a family.
The 5 of us was just ok in the apartment as it is small. The baby cot provided doesn't really fit in one of the bedrooms. So it's to my opinion not suitable for a family.
Next to this it's a noisy apartment, sounds carries around in the building and street life is heared. Good to be aware of.
The company replied fast and sorted out some issues we had quickly so that's good.