It’s a lot smaller than AC2/ACB would have you believe. I imagine the Villa Auditore would have scarcely fit within the walls! It was really fun, running around and taking photos. There was only one other family visiting—I expect, like everyplace else, it is much more of a tourist draw in the summer. I didn’t know enough German (I think) to ask them if they were there because of Ezio, haha. Although the church there is apparently a big draw for pilgrims.
I looked into the building that the fictional Villa Auditore is based on, the Villa di Maiano. Apparently at different points in its history, it was owned by both the Sforza and Pazzi families.