How does the shuttle bus service work? Is there on going shuttles from and to airport or do you have to arrange pick up with hotel?

They have a schedule, and will usually ask you at checking in if you need service.

They come around to the airport every 30 minutes. All the different shuttles have a different spot they look as d/unload at. You just need to find out where that spot is and wait there, they will be back soon!

Yeah, schedule time at the front desk.