Hello, strongly considering a Celebrity cruise in January, Caribbean. The two ships down there are the Equinox and the new Edge. How different are these two ships? Is Edge worth the premium? I will certainly search the boards and look at reviews but what is the right-down-to-it take. I'd be paying almost twice as much for Edge, and am willing to if it's worth it. Traveling are me (47 and my gf, 45). I am also considering Aqua Class as a possibility. Itinerary isn't a priority, we just want to have some time away together on a comfy ship.