If you're pursuing a language-related job (i.e. translator), then MIIS is second-to-none. If you want a career in international relations (i.e. diplomacy, policy analysis, global non-profit, etc), then MIIS would also be a decent choice.
But to be objective, I do have an unemployed friend who is an alum of MIIS' international policy studies program, so I guess I shouldn't comment prematurely about their competence in the IR field. There is also the recent scandal of one of their faculty members being a fraud. Apparently MIIS needs to improve its background checking processes for its faculty.
I'm too new of a member to post links, but you guys can google the phrase "MIIS Bill Hillar fraud" to find out more about this.
But as far as MBA is concerned, I'd stay away from that place (again... unless you want to concentrate on non-profit management). I spoke to a few MIIS students & alumni, they didn't have a whole lot of positive things to say about the MBA program. Even the student ambassador, who was supposed to promote the school, told me that the quality of their career services office was... underwhelming, to say the least. Furthermore, their lack of published in-depth employment statistics is not a very encouraging sign. Moreover, while Monterrey offers a very comfortable seaside small town environment, its not exactly a convenient location in terms of professional networking in the business sphere. The policy & language scene is another story. The Naval Post-grad School is located nearby, and so is the Defense Language Institute.
Bottom line, for those looking for an international MBA, look elsewhere first (start with Thunderbird, its been #1 in the int'l biz niche for over 15 years); if you're looking for translations or international studies, keep this school on your backup list, & I do mean BACKUP because admissions is very easy; this isn't a selective school at all.