I made a Super Shuttle reservation on October 21 for a ride on October 31. My credit card was charged immediately.
On October 31, I checked in via my phone that I was at the staging area of Terminal 2 at 4:27.
At 4:27 I received a text that I was checked in. At 5:08 I received a text that I was assigned to vehicle 675. It never showed up. At 5:17 I received a text that I was assigned to vehicle 314. That shuttle never showed up either, even though I texted the driver and the Super Shuttle employee called and texted the dispatcher.
By 5:26, no shuttle had arrived to pick me up. I finally gave up and called Lyft.