University of Siena has a great resource if I am talking about the teaching staffs. They have a very good knowledge about the subjects. The difficulty that I faced was due to language. Unfortunately, though it’s a student city it is very difficult to find people who speak English. Most of the information’s even in the university and the student residences are in Italian so sometimes the information is lost in translation. So if you are interested prepare yourself well before coming here A2 level of Italian would be very beneficial.