The apartment is reaally good! Close to everything, a lot of options to eat and drink nearby. Kitchen really well equiped, bathroom really good, good shower. Bed comfortable and air conditioning working pretty well.
Close to Duomo Square. Amazing! Giorgio was an amazing host, giving incredible tips to eat and drink (Fellice a Testaccio is a really good restaurant). hahahaa
Just one little point, there is a stair to get to the apartment, so, ask for a little help if you're alone and have a big bag!
I'm staying in this place in my next time in Milan for sure!