Very pleasant experience!
Serena is quite flexible (she was the only one accepting to host us for just one night) and she's so caring (refreshment in the fridge, many suggestions on "how to live" the area nearby, ...).
The house is as you see in the pictures, no negative surprises at all.
The location is very close to Navigli and just 15 minutes walk from Porta Ticinese and Colonne di San Lorenzo.
We would definitely suggest to contact Serena if you want to spend some days in Milan