I'm planning a trip in December, arriving on Tuesday the 10th and departing on Saturday the 14th. I'm trying to decide whether to reserve a shared shuttle, or a private car service. I know that the private car service is twice as expensive as the shuttle (appx $980 vs. $450), but I just don't know if it's worth it. Please let me know what you think and whether you have had any experience with either. Thanks!