Solo player here, and I freakin' love the mines. Best dungeon yet. I've cleared about 60, but only the first dozen were back when the zone was still a brutal murderfest. The challenge was amazing then, but keeping my adrenaline going at max the whole time was a bit draining. And dying less is nice - keeps the run + jump skills high. Mistlands itself is so empty of threats r/n that I can basically just zoom around cherry-picking the mines, and I hoard all of those sweet sweet shinies. More gold is worthless at this point, of course, but it glitters so nicely and my throne room has become a Scrooge McDuck vault. My stashes of royal jelly, sausages, and baby potions are far beyond what I can ever consume. But all treasure must come back with me - it's shiny and it's mine. My shinies... my precious!!!!!

Relevant finds:
Dark cores - 163 total (2-3 avg per mine, max found in one is 13)
Sealbreakers fragments - 77
Dvergr tankards - 6

Personally, I don't care if the zone gets balanced to be harder or easier - I'm gonna keep exterminating bugs and opening those secret doors until the dopamine hits stop kicking in.

PS - On one single occasion, I fireballed a random wall (non-breakable) and it yelled at me like an aggroed dvergr. Never found him or a way to get behind that wall, and I couldn't get him to talk again. Anyone else have dvergr spawn in the walls?