My Dad was thoroughly charmed by the monkeys.
Although he didn’t think much to what they get to eat. I am sure that their diet is more than fine, and explained to him how they supplement their own diets with tourists ice-cream / crisps / sweets.
He actually got to see this in action during his stay as well. It made him roar with laughter when he saw two monkeys try to gain access to a taxi and also when the young lady at the Top of the Rock Cafe explained to us that we couldn’t get a coffee because the monkeys had ripped the water pipe out!