Plus side: I take the shuttle a couple of times per month. The drivers have been safe, courteous, and efficient. I also meet new people as I am unfamiliar with the areas offerings! Great service and can pay tip with the driver rather than online, so measures with the driver's service.
Down side: The airport recently moved the boarding area at the airport pretty far from where one would pick up baggage, which is pretty inconvenient. Hope is moved back soon!