When are you thinking of going? I am going in july for 3 weeks, its a good place, you do have to be careful not to take back roads there have been reports of women being mugged along the back streets.
However.....
It is a good place, plenty of bars, resturants, beaches are great, water parks, casino, market.
plus, mum went last year and brought me back 5 pairs of shoes which cost around £30 in total, really cheap and ace quality.
Not sure how long it takes to get to granada, but the transport links are pretty good, just don't go on a trip with a tour group will cost u a fortune