Haha, they all unilaterally praised the set and production design and a couple standout performances! I think their main complaints were in the underutilization of the gender swap and that despite an effort to integrate more openly queer representation within the storytelling, they made some interesting decisions to cut/change the show in a way that made it almost less so. The decision to refocus the Joanne proposition to her husband instead of keeping it with her, and the cutting entirely of the Peter scene instead of addressing it in any way, regardless of whether it was reworked at all or even given to Susan (among other things).
Now, granted, Sondheim also has gone on the record that he didn't truly care for queer readings of Robert, as he felt it a little handwavey and a "simple" solution to a more complex set of character circumstances and dynamics, but that's mostly out the window with this production anyway. I'm super excited to see it though, I wish I could have caught it in its initial run, but so curious to hear the touring cast!