Tested this in a non busy lot a few months back. It has somewhat improved over time. It's a bit jerky. Not fully usefull yet but I HAVE used it in heavy rain and it's nice. Really nice.

It absolutely stops for people or other cars, a bit over reacting though.

Would NOT recommend in busy lots as it is now.

But that's not the point. It's the fact that it CAN do this now, and WILL get much better over time. Like all tesla software stuff. No other automaker coming even close to this.