I wouldn't want to go there on vacation - everything will be highly controlled, they will expect you to see certain Great Leader projects, everything organized and pure propaganda, and you will be closely followed and listened in on.
Ok China does that too re the listening etc but with some aplomb so you hardly notice, whereas other countries are also pretty crude about it - wit Gadaffi's Libya.
You won't be able to roam around, the shops etc looked decimated and one does wonder where they store the favoured citizen's food and distribute it.
Have you been to South Korea? If not, start with that as that is culturally pretty disparate to Europeans but does offer freedom of movement and some amazing history with the Silla Dynasty in Kyong-Ju, now a world heritage site (about 5 hours by train from Seoul). See how that goes first as there are a few sights and opinions that will have you gasping.......