T Mobile Service?

I have a friend who will be starting at Babson this fall, and as she is an international student, she will need to buy a cell phone when she arrives. As for which phone service provider to buy from, I was going to recommend T-Mobile, as it is by far the cheapest overall. However, it does have issues with reception (as T-Mobile customers don’t get service where I live). Does anyone know if T-Mobile is usable at Babson? Any response would be appreciated