We wouldn't do Super Shuttle again. Despite our reservations, confirmations, and re-re-confirmations, the driver who was there at our appointed time didn't have our name anywhere on his clipboard, loaded a bunch of walk-on passengers first and then expected us to either just squeeze into too few remaining seats (without the kids in their car seats!) or else "just wait for the next van." None ever showed.
We called their reservation office about 5 times and their national customer-service center at least 3 times after that. No one ever expressed a real apology nor any kind of an acknowledgement of our plight.
Finally, the driver who did show up about 1 hour later got us to the airport directly and quickly, but this was after we had to endure all of that stress and corporate indifference in the meantime.
We did manage to catch our flight somehow. However, Super Shuttle failed to "call us back" the next day as they promised "with a customer care specialist" to really apologize or to win us back for future business.
Next time we'll just spring the extra for a really good cab service (know of any?

), or better yet, we'll just drive.