We had an unpleasant experience with SAS. I've already written about it in another thread, so I'll repeat the description here. This is likely too late for the OP, but I'm frustrated that all I had read about SAS online was good (though I've since found another negative report), but we had a poor experience, so I want to share my experience with anyone who might search & find this post.
We used SAS for transportation from the Miami port to FLL in January 2016. Booking was easy, but there were communication issues in Miami and the drive was unpleasant. The driver wasn't very safe- at one point, while gesticulating during conversation, he took both hands off the wheel for a few seconds. I couldn't believe a professional driver would do that. My son was in the van, so it was upsetting.
The driver also talked the whole time: highly opinionated stuff about politics and travel- apparently fishing for business of some kind. He actually offered to give me his personal contact info so I could call him about some vacation opportunity. I didn't want to argue with him because I wanted to keep up my post-cruise happy mood, but that drive dampened it considerably.