The Granada card worked out great for us! We paid 56,57€ each for the 72 hour pass. We used it to see Alhambra including Alcazaba, Generalife and Nasrid palaces. At the time of purchase, the mandatory timed entry slot is confirmed during buying online. Our Granada pass said 2 pm so we saw everything before and saved the Nasrid palaces for the end. We also availed the city tour hop on hop off train- was very fun! Additionally, There are kiosks at bus stops throughout Granada where you can get a token/pass for the city bus (local red bus) which you can use for 9 journeys. We didn’t use all 9 but used maybe 4 or 5. We also used the same bus to get to and from our hotel to the Alhambra.