As an overall experience the location, the flat and the price were ok.
Nicolo was ok (maybe a bit more helpful and communicative).
The biggest disadvantage of the appartement (and that's why we rated 3/5) was the "bed" (sofa turning into bed). We knew that from the description, but it was very uncomfortable to sleep. Since we came in Milan as tourists and we walked long distances, a good bed to sleep was very important to us.
It would be better if the apartment had an average bed.
Apart from that, everything else was ok.