Go have a great time, and formulate your own opinion of the experience. For all the negative reviews you'll see here/elsewhere, most likely at least that many unwritten positive reviews. Bottom line: they sail full...come to your own conclusion.
You'll know if this line/experience is for you or not. If it's not enough, the option to move from a family line to a luxury line is available. If it's more than you need, the option to move down is also available.
We're realists, not cheerleaders. That being said, you'll read negative reviews from people on here that don't even cruise...once you sort them out, it's actually comical.