* automated lane change when you press indicator
* Summon (a google tells you all you need to know about how bad)
* Autopark (this has never worked on my model 3 either, aside from a handful of times. Again, common knowledge it doesn't work).
* Automated freeway exit selection
Otherwise, its the same pretty good lane-keep system they give you with the car as standard.
Of course, Tesla being Tesla I'm sure the feature set will change with time, so maybe you get more later? Tesla don't promise this though, and like all tech you should evaluate purchase on its features today, not its promises tomorrow? I might have missed something, but generally thats all it adds over the basic AP you got with the car, and it's quite clearly documented as such. I can certainly agree I'd feel sick too if I'd paid $6k for it in its current advertised form!