100% agree with everything that you said (especially your affection for Ms. Potts and Liz, and everything that you said in #4)!
I'm in my mid-thirties and have played a lot of adult games, but this one is by far the best I've experienced.
The only thing I would add to your suggestions is more stuff for Rachel...she is such an adorable P.E.T.! 😊 Also, (this may not be for everyone 'cause I believe she is the oldest character in the game..) more stuff with Ruth - I really wanna see that religious prude corrupted! 😅