2-3 WEEKS! Where do your grandparents live? I am studying medicine there and it takes THREE to FOUR DAYS tops for a letter to get to NYC. I study in the same campus as the school of dentistry and a lot of my friends attend the school. The dental school is the only school serving the island of PR, as opposed to 4 medical schools. They only accept like 60 students a year so as you can imagine they are very, very particular as to accepting mainly PR residents. I dont agree with the inferences made here that it translates into a bad school. It is a state run school and as such it is their perogative to accept state residents only. To say that somehow the school is not "run" correctly based on that and without any facts is just boorish and disrespectfull to all the good students that go there.
All I am saying is that when making such negative statements about any particular school, make sure you have the numbers to prove it. Otherwise, you will be just spreading opinions and hearsay as fact. The school is completely accredited, and that says a lot about the quality of the school. As far as I know it has never been in danger of loosing its accreditation, ever. I am sure there are SDN posters that attend the school and might have better answers for your particular questions. Hope that cleared up any doubts.