Yes, busy days like Summer or holidays. At noon the Express line for Hulk will be 20 minutes. Why? Because all the hotel people sleep in, wake up at 9am, stroll into the parks at 11am, and go to Hulk. Same thing with Dr. Doom. Spiderman is ok because the scoops load fast.
Over at USF, the Express line for The Mummy can be 20 minutes. If you see people waiting at the bottom of the stairs, then you'll wait.
The thing is, once you go with FOTL, you'll be spoiled and even a 20 minute wait will seem like forever.