Ferro is a friendly and nice host. The price is quite fair.
The main issue I encountered was the beds are all quite bad. The single bed is the worst, any small move will cause loud noise. And the twin bed is a bit weird as its made from two bed frames with different height level. Plus one mattress is quite wore out.
The kitchen is very equipped yet the kitchenware has to be each before the first time you're using it.
Small issue of the clearness regarding to the bathroom as I found quite a few very long white blonde hair lying around. And that is not really a pleasant thing to be found after paying 14€, that I was expecting a neat and clean apartment.
Since the apartment is an old building, there's holes on the wall and doors, you could hear to noises of the street and feel the wind blowing through the whole apartment.