Hello Paul. I did this holiday in September and it was a super holiday. Taking print out maps is a good idea as in Grenada there was too long a queue at the tourist information for the short time we had to there. I ended up getting separated from others, therefore, couldn't explore much in case I got lost [no sense of direction] and didn't want to go too far from the meeting point. This was my second visit to the Alhambra and I enjoyed it but it isn't everyone's cup of tea. However everyone who went on the trip seemed to enjoy it.
I didn't do the trip to Gibraltar. Instead a couple of us took the bus from Mijas to Fuengirola and then a train to Malaga. The tour manager took us to F'girola on the first day and pointed out the station. On the last day a group went off to Marbella and Puerto Banus also by public transport and thoroughly enjoyed it. The bus fare from outside the hotel to F'girola was about 1.50 euros I think. It tells you on the side of the bus.
The food in the hotel varied and I think I only had difficulty finding something I liked on one evening. Breakfast has a good selection though. Some went out to eat in the evenings.
No, not everyone went to bed at 9 pm! A group of us usually walked along to the centre of the town for a couple of drinks after dinner. I'm sure you will meet others who are happy to do something like that.
Have a great holiday.