They used to have a rat problem but that was years ago. However, you do see mushrooms in the bathroom, even though they get removed each week by the cleaner. The refurbished flats aren't as grim as the non-refurbished 12 people flats. I used to live in the latter one, and the kitchen was always awful, the smaller flats weren't as bad, but trust me, there will be rubbish drama in every flat. Surprisingly (or not), 2 showers between 12 wasn't a problem, we almost never had a queue.
Just to add, East Slope flat doors automatically get locked when they are closed. Park houses, in my experience, were not even half as social as East Slope