Feedback on Curst Cave:
Just before the update, I went in a party of 3: high level cleric, high level druid, medium level bard. We cleared it with little trouble, mostly because of predictability and practice. Did it without resting.
Right after the update, same cleric, same druid, and a medium-level paladin. Much greater difficulty, mostly because of not knowing what to expect. Had to give up without attempting the bottom level from an abundance of caution. ICly we had been told that the liches were much stronger, so since we had struggled already, we didn't want to risk it.
Tonight with a stronger party, we wiped it easily. The liches were no more effective than they have been in the past, but (because of the warnings) we also concentrated on taking them out immediately before they had a chance to do anything.
I got hit with a nasty slow trap, but fortunately that wasn't in the middle of combat.
Summary: Definitely more difficult than it was, riskier, but not undoable at all.