Carol, I just checked their web site and noticed the fares they are listing are higher than those offered by many of the new cruise ships. Not even an inside cabin for $500 as previously quoted by someone. It doesn't seem like a good deal to me. Also they state that only a few cabins are ever available for boarding in SXM. It will be interesting to read the reports here by those taking the cruise.

http://www.carib-a-travel.com/files/Horizon_WEB_Ship_Customer_Information.pdf