My friend and I will be doing a semester exchange at Ca'Foscari university of Venice. We're thinking of staying at airbnb in Mestre for 3months because it's way more affordable than in Venice. Is Mestre a safe place to stay? Are restaurants, supermarkets, and shops easily accessible in Mestre? What's the best way to commute from Mestre to Venice daily and how much would it cost? Advices are much appreciated.