Kim Il Sung's government was clearly much better than the Japanese colonial administration which preceded it, and up until the 1980's the DPRK had a better economy than its southern counterpart. It was after his death that the government pretty much abandoned any pretenses towards Marxism (which weren't strong to begin with) and completely replaced Marxism-Leninism with Juche and then Kim Jong Il's "Songun" views. The 1990's also saw a huge shift in favor of xenophobia and quasi-racialist "theories" on the Korean "race," etc.
I'd certainly rather live in the 1980's DPRK than 1980's Romania, for example.
Here's a nice read on the present-day DPRK and the West's attitude towards it:
http://www.revleft.com/vb/showpost.p...42&postcount=4