I don’t know how on earth this costs $20. It literally just looks like one new career. It may come with a new world. But even then, Jungle Adventure had more content than that. Even JTB has more content than that.
As far as preferences, I’m pretty sure they’ll be a base game feature. They’d get a lot of hate if they pay walled such an important feature in the Sims franchise.
I don’t know what’s going on with Maxis’s budget. How does Paranormal Stuff have so much content, but this pack seemingly has so little?