Location: The apartment was in a great location, a few minutes walk from the centre of the city and near the metro station.
Apartment: Smaller than you'd expect from the images, it would not suit more than 2 people maximum. It is a good base if you just need it as somewhere to sleep rather than a place to hang out in. It is cosy, mattress is comfortable, kitchen area is well-equipped and the apartment has a small balcony.
Advice for check-in: It is quite tricky to find the apartment the first time, especially late at night when the gates could be locked up. I recommend checking-in during the day if you are going to stay here. I arrived at midnight and walked around for a while trying to find out where to go.
Overall: I would recommend you stay at the apartment for a few nights as you'll be out and about during the day exploring the beautiful city of Milan most of the time anyway!