Although it's a long ride from Sevilla, I have to say the tour guide, Inez, made all the difference, commenting all along the 3-hour ride to Granada and explaning the landscape, the pueblos we were passing by, and she was really funny as well, put the whole group in a good mood. Albaicin barrio was pituresque, well worth the visit and explanation. As for Alhambra complex... magical, I have no other words to describe it. 3 hours inside is a bit short to see it all, but you can get a really good notion of the whole structure and maybe take notes to revisit it.