We stayed at Helene’s place in the beginning of June, we were 3 people. The appartment is outstanding, especially the location: super close to Duomo and subway station. To get to Cadorna station takes 15 mins by feet, to get to Milano Centrale takes up to 30 mins by transport. The appartment itself looks like at the pics, and its super spacious and comfi! The terrace and the yard are super cute and provides more points to the place.
Helene is a very nice host, we did not have any problems with keeping the luggage in the app for couple of hours until we leave, WiFi worked perfectly, amenities were in place including many towels, hairdryer and iron.
Note that the second floor is a penthouse so the ceiling is only 1.80 sm..There are not AC in the entire place so might be hot in summer and if the windows open it is very noisy. We opened the windows and sleep with earplugs which was ok for couple of nights, but if you are more sensitive you should take it into account.
Overall we are super satisfied and would recommend this place!