Bocconi has great academics and you’ll meet people from all over the world. For economics it’s got worldwide reputation and a great alumni network in Europe.
The classes are in English but everything else will be in Italian (administration, daily life, general interactions) so hopefully you’re in AP Italian or dual enrollment Italian classes and doing well (if not, register NOW for Italian classes at the nearest cc and plan to enroll in Middlebury’s summer program, application is likely due soon). It means you’ll graduate bilingual and probably with basic knowledge of another language.
A big downside is that there’s no campus and no community - it’s very commuter, so the language barrier isn’t alleviated by residential life. There’s a residence but it’s kind of far from the classroom buildings (as in, take a bus far, other part of town far - not ‘it’s 10mn to the dining hall’ far.)
Another aspect is that for all its academic strengths and international reputation, it’s an Italian public university which means funding troubles. Don’t expect small discussion sections or academic support or amenities or a smoothly functioning administration (you’ll get a new appreciation for American civil servants after a stint in Italy.)