I spent 3 nights at the crowne plaza Milan City Center in May. The Hotel is not so far away form the main railway station and the underground station is just below: so it is very convinient avoiding spending extra money (and queuing in the traffic...).
The service was really good: I was upgraded to a premium room with a large bathroom and..no noise at all during the night.
Breakfast was excellent, as well as the restaurant, even if I suggest to try one of the restaurant outside to have more choice.
The personnel at the reception was kind and professional: they helped me for any issue I had.
All in all a very good stay.
The hotel area is safe, but being close to the main railway station it is always good to pay attention to some strange people nearby.