I actually have been playing this very slowly with my girlfriend over the last couple months too for the EXACT same reason. We technically beat it, but I want to go through and get the different endings before moving on to Little Goodie Two Shoes, since I know the ending we got doesn't directly correlate it.
I'm kinda with you where it's a fun experience if not a bit predictable and basic. Little Goodie Two Shoes seems like it's the more creative/original game. That said, I did really enjoy this and it was fun going along the journey of seeing how the protagonist and the other characters fit into the whole narrative.