My son has been living near San Juan with family for the past 7 years. I am 81 and have considered making extensive visit. He tells me that there are hospitals and doctors there that are just as good as the better ones on the mainland. He is still working because he has his own business in construction and he is taking care of the condos and properties of a number of part time residents.
I lived there for a couple of years - transfer in, transfer out - and we enjoyed it muchly!!