It's like it was any other biome.
What I startet playing, I hated the blackwood forest (or however it's called in English now),
After that I hated the swamps and then the plaines (looking at you, deathskito)...

But after getting more XP and proper gear I got used to any those biom and none of these is an issue any more.
Same is going to happen with mistlands.

I like them so far.
it's hard to find a proper place for base building, I only which there would be more interaction whith the Dvergers. I like them.

Maybe with the upcoming quest-update? please?