Very nice stay at Johanna's place. The room was nice and was cleaned every day. Johanna was great at communicating all the details and the girl at the reception was very sweet and helpful too. The only thing to be aware of is that the shower space is indeed very small, literally on top of the toilet, so water would easily go out of the bathroom and we noticed traces of moisture on the wall.
Apart from that, the neighbourhood felt safe and the location is very good, ~15 min by foot from the market, ~ 20 min from Agia Sophia.
Overall, we really enjoyed our stay and would recommend!