I tried it and it was laughably bad. The auto park was worse than it was years ago, leaving me a foot out from the curb in an easy spot. Trying to use the self driving on city streets resulted in it stuttering and stopping immediately. The only thing that worked decently was highway driving, which it does without the self driving package anyway.
Given its performance I wouldn't dare trust it with any of my daily driving even if it was free.
Given its performance I wouldn't dare trust it with any of my daily driving even if it was free.