The good: Location was very very good. Awesome food near by, nothing is not walkable from here! Very nice to have an outdoor space. Lots of beds. This is a good spot if have a big group and you're ok with sleeping on beds stashed in every room. Very little privacy inside the apartment but lots of space.
Downside: Simply not safe of little children. Both stairs are terrorizing if you're a parent, we spend a lot of time using chairs and bags to block off the sudden drop of the stairs. The back stairs is practically unusable as an adult too, if those stairs would have been in the photos we probably would not have pick the house. The top bunk bed is 6 feet tall and has no guard rail.
We did not use the basement. I will not complain about the musty smell like the other reviews, its ok- its a European basement- but the slight smell is real.
Overall, not great for little kids, but if you want amazing location and a lot of space, this is perfect.