I have to respectfully disagree Kev1n. I just got my Loaded Model X 90D about 3 weeks ago and have used AP2 extensively. While yes, it is not perfect (that's what software updates are for), it works great, especially in freeway traffic which I deal with a-plenty in San Diego, Orange County and Los Angeles. TACC is a god-send for freeway traffic. My right leg thanks me every time I drive my Model X versus one of my ICE cars. I am guessing that, since you live in the Bay Area, you would find AP2 to be very helpful if you approached it with the right, positive attitude.
Andrew