I haven't heard of the company, but I guess just do a Google or other Internet search and see what you can come up with on that company.
I can't imagine being at sea for 48 days, although it would be 3 separate itineraries, legs, or whatever you want to call them. Of course, this probably means 3 separate muster drills. Most of us probably even can't take that long of a cruise because of our work schedules, and how many vacation days we get per year is usually far less than that.
2007 - Majesty of the Seas
2009 - Enchantment of the Seas
2010 - Freedom of the Seas