I was pretty unimpressed by the accommodation, it was old, not very clean, and unsafe in places - especially for people with small children. Lots of the house showed quite serious signs of wear-and-tear: damage and mould round the kitchen sink, damage to bedroom and bathroom doors, lots of chipped paint. The bathrooms, especially the downstairs one probably haven't been renovated for 30-40 years and the downstairs one smells faintly of sewage. When we arrived we had to clean the flat, it was dusty and there was hair and nail clippings (!) on the floor, presumably from the previous occupant. The bedroom and bathroom doors locked automatically when you close them - this might not be a problem for adults, but when children do it this can potentially be pretty dangerous. This had obviously happened before as the doors were damaged around the locks where someone has had to force the door open. The spiral staircase also had large gaps around it that small children could easily fall into.
In summary, not a good place to stay, the only positive thing I could say about it is that it was close to useful shops and a metro stop.