Thanks to both responses.

I'm a fairly experienced traveller and it's not really a big deal to me for taxis or otherwise but having my wife along I'd just sooner make sure she's happy and comfortable above all else. It is a vacation at the end of the day.

I've seen a few private transportation options (shared shuttles, etc.). Looking for any recommendations that others might have used. Car service is preferred at the end of the day since that's what we had last time around.