I just visited yesterday and i went on every single roller coaster in the park.(execpt for viper)And yes i did go on superman, the wait was a full 2 hours to get onto the coaster, the coaster itself was good but i thought too short, and i also didnt think that it was worth the 2 hour wait. But I think whoever has visited SFGA before or is planning to in the future you should at least ride it once. And of course my favorite ride there is Still Nitro!!
~eZe7789