Premium IV put us on the Voyager one trip when the weather closed down the SBH airport. They whisked us to the other side of the island and purchased tickets for us. The waves were quite high, and windy, nevertheless, we had absolutely no trouble riding. The ship is well outfitted, clean, and we rode down below (had to because of the rain) and kept our eyes on the horizon to stabilize our sense of balance. I would take the Voyager without hesitation in the future. In nice weather it would be pleasant to ride upstairs in the fresh air.
It is longer than a flight, but it gets you there, and isn't that the ultimate goal? Good luck to all holiday travelers!