I just ran this on high tier with a lv 7 swashbuckler, lv 5 psych sorcerer (dark archive), a lv 5 reach fighter, lv 6 arcane sorcerer and lv 7 witch pregen.
The encounters do have alot going on so there is a lot to track but it isn't too daunting. They were challenging espacilly the first do to the party make up. Many of the concerns others had on the prevlence of certain immunties did styme at least on character most were able to contribute for the most part.
The second was also diffcult do to confined space but they enjoyed the limited role playing.
Optional was skip due to time.
Final encounter was tense due to the objective and with Hazard.
Overall the group found the scenario challenging with many feeling they were in serious in each encounter.
