I had a fantastic time at Greta's place in Milan! She is a great host, giving valuable tips and advice about the city.
The room itself is located in an old romantic courtyard. Having a separate little bathroom and own entrance made it feel almost like a private studio.
The neighborhood felt very safe, I had no problems walking home alone at night. Also everything (supermarket, restaurants for dinner, cafés for breakfast) is within walking distance, the underground is just a 10min walk away.
I will certainly come again next time I visit Milan for work!