As a downtown resident I have used the Skyway for years, several times a week.
Now that it is free I have seen a great uptick in the number of riders.
However, I have noticed something different. In many trips that I have been on recently between Hemming Plaza and Rosa Parks there has been standing room only. During this trip, the Skyway car seems to tilt more than I remember it in doing in the past when there were less riders. In some cases, the tilt during the turn has become so severe that I actually became uneasy.
I am sure that JTA is monitoring on their cameras and would not allow them to travel with unsafe capacity, but I do feel I have a keen perception of things like this based on years of use, and I do notice a dramatic difference in turns when the car is at 'max capacity'.
Just adding my thoughts. Glad it's going to keep being free. It helps a lot of people. I'd keep using it, free or pay.