IE is a very international community, you meet people from all over the world. I am part of a class of 50 students and we have 26 different nationalities.
IE is very well known for its business school and they have recently started to develop other programs in other of their schools. They are at a very initial stage in this development, reason, why there is sometimes lack of communication between schools, or procedures, differ from program to program.
IE is very receptive to the feedback which keeps them constantly improving, however at this stage I would recommend IE if you are interested in their Business School since their programs are more solid, and are well known globally.