I don't necessarily feel like posting a long reply, but I would like to clarify a couple of points G-man made -- the first two years are 60% in English (and it says this in UAG's catalogue). Doing the math, that means that you have some classes in Spanish, from Day 1. They'll often say the first two years are mostly in English, but unless someone does their homework, they won't know exactly how much is Eng/Span.
I agree with G-man: if you are thinking of GDL, make sure you make a visit to the place BEFORE you come down for an interview. I know it can be expensive to make that trip, but many people come here with preconceived ideas of how it's gonna be, and then get bitter when it's not all milk and roses. Plus, when you interview, you have to pay a $2000 inscription fee (nonrefundable unless you are not accepted, but everyone is accepted). That's one huge difference (that I greatly appreciate) between UAG and US schools. US schools are very selective and do everything they can to keep a student from flunking out once they have accepted him/her. UAG accepts practically everyone and it's your job to do the work and keep from flunking out. So they give everyone a chance.
I also believe there are more than 400 students in the International Program (US = mainland and Puerto Rico), especially considering that my semester has over 150 by itself. G-man also said UAG has "plenty of its own teaching hospitals." They actually only own one: Hospital Angel Lea?o (HAL). But they are affiliated with others (as are many schools in the US).
I am a 6th semester student, and I can honestly say that I am glad I made the choice to come here. I have definitely had my share of frustrations with the school, the government bureaucracy, etc., at times, but overall, it's been a positive experience. Add to the fact that I have improved my Spanish, which is definitely a marketable skill in the job hunt. G-man mentioned "graduate bilingual." This is the goal, of course, but "bilingual" is a hard thing to achieve. You have to start learning Spanish before you come, or as soon as you get here, and keep at it. Many people make the mistake of saying, "oh, there's still time to learn it," but all of the sudden you'll be required to know it, talk to patients, make presentations in Spanish, etc. Plus you don't want the GPA you earned at ICB (Instituto de Ciencias Basicas -- where you do the first 2 years) to slip when you get to HAL (where it's all in Spanish -- lecture, tests, everything).
G-man hit the nail on the head when he said it is what you make of it -- and if you work hard you can do it. That's the key -- start working from the minute you get here and don't slow down. There are rewards: besides passing the Boards the first time... I am lucky enough to be able to be one of 4 students (per semester) participating in the Coop Program between UAG and NY Med College next year -- which means I get to spend 7th and 8th semester in one of NYMC's hospitals.
If you have any specific questions, please feel free to send me a private message.