What do you want to do with your degree? How does the cost compare to the other universities you are considering?
I am choosing universities in Europe over US ones, and right now I am set on working for the EU.
The list of alumna shows you that graduates of the university hold important positions in various international bodies, even U.S. bodies.
I would definitely consider it, especially if you see what you can get out of this degree and where you want it to take you.