Trains in the Netherlands work very well, so I would generally suggest going there on your own and walking around some tourist sights. That coach tour looks like is' good for either people who want to see a bit of several things and have very little time, or dislike the idea of going independently.

Indonesian restaurants are all around. Kantjil an de Tijger on Spui is good, though not very spicy, but their rijstaffels are way overpriced. I've only had one when someone else was paying. They do takeout

I like Srikandi it's close to the Rijksmuseum.