I am using the 30 day free FSB. For the most part good results. The exception being traffic circles with high density traffic. Or any case where the software is in doubt of what another car will do ( four way stop ….)
When the software is in doubt it simply stops working. Which in the middle of a traffic circle is unpredictable behavior to other cars., slowing down when expected behavior is continue at expected pace.

So the current version is close but not ready for robo taxi.