Hey Sacacorchos, welcome to the board!!!
A lot to take in there all at once. These broad questions often intimidate members into not posting
I for one absolutely love Granada. Don't tell Madrid I said this

but Granada is my favorite city in Spain.
Never went to the University of Granada but have been to the campus. It is an excellent institution and is very prestigious as well. Not to mention the fact that the Granada student night life can rival even that of Madrid.
The health insurance question has been done to death (no pun intended) on this board, do some
SEARCHES ![[search]](graemlins/search.gif)
on "health insurance", "medical insurance", etc...
You will get a lot of good results.
Saludos,
jer...