Sorry to say that I'm very disappointed.
Walked out of the airport to the shuttle pick up island and took the first one that approached us which was Executive. It was $6.50 one way with option to buy round trip. I was flying back solo so I decided to buy the round trip. Got on board and noticed the sign "Tips are appreciated as it is part of our wages" I have no problems giving tips at all but for some reason when I see signs like that and it seems to be expected it irks me.
So out of five stops we were the last, and that's fine it is after all a shuttle not a taxi. My only complaint was the actual ride, I felt like I was on a roller coaster and more then once felt like we were going to crash in to something.
Got to my hotel and forgot about the whole thing.
Night before I was leaving I called the number on the token they gave me, which by the way is your ticket/receipt. My flight was leaving at 8:45 so they scheduled my pick-up at 6:30, what a nightmare specially after a late night. I got up and got down stairs on time. They told me that if the shuttle didn't show up after 15 minutes to call. I called at 6:45 and they told me the shuttle would be there shortly. 7:00 I call again, "Oh the driver says he's 3-5 minutes away" BS. It was 7:15 and after 45 minutes of waiting I was fed up. I had seen four shuttles of the same company (not Executive) drive by to pick up other people on time. Finally I asked the last shuttle I saw if I could catch a ride with them. I lost the $6.50 that I paid for the Executive round trip but at this point I didn't care.
The shuttle that took me to the airport was 50 cents cheaper, not tip sign, and a smooth/professional ride. So of course I gave the driver a good tip, it was well deserved.
Don't by a round-trip fare!