Supershuttle is shared taxi to your end destination. Everybody in the car get to their hotel or requested destination.
I found it a bit odd to get the question if I want to tip with the card (already when paying for the ride) in advance, at the shuttle desk at the airport. I thought tips are to show my appreciation AFTER I got the service requested. Here I am asked to give 20% without even knowing if the service is great or sucks.
Car was old and crappy but service satisfying.
Two persons pay $57 from airport to downtown hotel. Ridiculous!
Supershuttle may be great if you are one single person, but as soon as you are two or more in your party, it gets more expensive than necessary.
Next time I will request for Uber - at half that price.
They accept AMEX.