I really enjoyed my stay at Denis' place. While I was a bit sceptical before entering the building, as it looks slightly shabby from outside, the flat is beautifully renovated and refurbished inside. Everything is clean, the walls recently whitened, kitchen and bathroom are new with a super comfortable rain showerhead, the room is resonably big and just as you can see on the pictures, with large wardrobe and desk, a comfortable bed and actually a quite nice view out of the window.
There is a park and Hoxton Market close by. I would say Old Street station is rather 15 than 10 minutes walk away, but still near enough to walk there, otherwise there are bus station or Hoxton Overground station closer to the flat.
The hosts (I met Denis and his father) were both very friendly and welcoming and even though I was only there for 3 days, I could allow myself to feel at home.