I was quite pleased when I realized I could use TACC on my city streets safely. It was fun to simply set my max speed, activate TACC, and let the car worry about keeping up with the traffic within the speed limit without constantly having to check the speedometer; especially once I discovered that the car would also come to a dead stop at a stop light, then start up again—as long as there was another car in front of me. There were only two things that bothered me: I felt that the car would approach a stopped car too fast, and then need to brake aggressively to come to a stop, and it would misinterpret cars that were turning from in front of me as potential collision threats and brake in an overly-aggressive manner before resuming a normal speed when they were simply making a maneuver into a turn lane.
My impressions of the TACC update with 2019.8.5 is that it has become even more overly-sensitive to cars moving into a turn lane and braking without warning in such a way as to be potentially troublesome to any car that might be following me and which would not be expecting me to brake in such a situation. Also, while on the previous update, the car would come to a stop behind a car at a stoplight in the properly-accepted distance with the top of my dashboard aligned with the bottom of the rear tires of the car in front me, it now stops about a car’s length away—too far, it seems to me. Also, whereas before, my car would wait when starting again maybe a second or so before starting to roll forward, it now waits uncomfortably longer, and then starts up much more abruptly than before and seems to have a difficult time adjusting its speed to the car in front.
As a result, I am less comfortable using TACC in town now—and don’t do so unless there is very little traffic.