I'm sure all the other Caddys out there are better than my rental, but this rental has put a bad taste in my mouth. I'd never buy one. It's sooo sloow. I guess I just can't get over the instant torque vs waiting for the engine to spool up.
Getting back on topic though, super cruise is probably better than AP. Hell, the Adaptive Cruise Control in my Mitsubishi PHEV is even better than AP. But, AP will get better...slowly. I would say AP will be at parity with Super Cruise in 3 months maybe, 6 months definitely.
Some folk on this board think I'm either a GM spokeshole or an EV hater. Neither is the case.
In real world traffic, even our Volts are quicker than the Caddy. On paper the Caddy is much quicker, but in urban use with traffic, EV powertrains are far better and easier to deal with.
I prefer EV powertrains and logged over 90% of my miles since 2013 on juice. The Caddy's have the my wife's choices. She was given the option of a Model S P series, and she still doesn't trust them. She is not alone, but this resistance will fade with time. She's actually excited I'm getting the Jaguar i-Pace, and she drives the Volts without complaint, but likes her Caddy more, especially for long trips. The seats are very nice.
Compared to other ICE vehicles, the Caddys are solid performers when you put the spurs to them, which is all I was saying.