I liked part 1. Felt like you had options, could tell the story you wanted, and not have to think overly hard about the choices and how they would affect things. I felt it lived up to the word of one of the comments made below. One unavoidable NTR scene for the story and the rest was optional.
Part 2 did not feel that way for me. I got through all of part 1 with Lisa not having a relationship with Saul to having her cheat on the MC with him without any option or prompting. It felt like you made it an all or nothing option with Part 2 where if there's any kink pursuit, she ends up cheating on the MC. I felt like MC got cucked when I got through all of Part 1 with only 5 cuck points in total. I ended up starting from the beginning of part 2 and just doing the questionnaire with George so I could get some semblance of control back.
So yeah, love and recommend part 1 to anyone looking for a good NTS story. Would not recommend part 2.