So my thoughts:
Not sure how the code got so error riddled for this update; things that have been in place for like six or seven updates have become borked. The only issue I've had with old content in my new 19.1 play is I can't advance the Mrs J story past unlocking June (either as a GF for Erik, or as a new fuckbuddy for MC) and getting drunk handies from Mrs J in the basement. But others are reporting all kinds of game breaking stops in play with old content, which is weird.
Regarding the Eve stuff - I loved it. She's fleshed (heh) out as a full character, and I like her backstory. I do not like that there's only one option for Grace's sexual availability, and it's not 1:1. (Nothing says 'sexy' like impregnating your girlfriend's sister in a threesome with her and her girlfriend..... I mean, I make MC take the infertility pills because that's not my kink, but still.) Not into the futa thing, but I played that content just to see what it was all about...... not sure there's a super good payoff there for people who are into that sort of thing, but that's not for me to say. Was glad to see the implementation of more oral content, as that is just wonderful to experience vicariously.
Hopefully in the future we'll see some more facial pop shots; right now, the only ones I can think of are Mom takes one in the shower BJ (and a little bit when sexing her mish on her bed), Miss Ross gets a little one, and you can have Cassie take it on the chin. The initial art for nighttime porn sex with Jenny implies a facial, but the post-pop art does not so indicate.