So far in 2021, I've been to Kings Island, Cedar Point, Dollywood, Carowinds, SF Great Adventure, SF St. Louis, SF Great America, Universal Orlando, Busch Gardens Tampa, SeaWorld Orlando, Disney Magic Kingdom, Disney Animal Kingdom, Disney Hollywood Studios, and Hershey Park. At the beginning of the year, I would have put money on Six Flags being the worst at staffing, lines, hours, etc. Somehow, they've managed to be one of the best (at least so far this year). I don't expect it to continue, but they are doing a much better job than many of the others who are normally very good.