A better read person on the topic could probably make a better effort post than me, but to give a few bullet points.

There is a bit of a weird cult of personality around the Kim family, but it is grossly exaggerated by the western press.

They do dedicate a lot of their economic capacity to military development, but that's kinda understandable what with an empire that once bombed them nearly back to the Stone Age having air bases just south of their border.

They do struggle economically, but the idea they're in a perpetual famine is bullshit and a lot of these struggles are do to US sanctions.

The really crazy stories you hear about people believing in unicorns and Kim personally feeding his concubines to dogs are almost entirely bullshit coming from weird right wing South Korean news papers that almost always get debunked within a week.