Shanghai is an amazing city to travel and study in. I went as a student, but I had the chance to travel on the weeek ends to near cities and water towns. Personally, I visited Wuxi where my family is from. In shanghai, getting around is super easy. We travel by bus, bikes, metros, cabs, and Chinese Uber. All of these are really cheap. In terms of food, you can get really good food for not a lot of money. You could order food from a delivery app called Eleme. I love shanghai, I recommend it for anybody.