Out of the last three times we've gone, they've all been for each of our girl's sixteenth bdays. The first got a birthday cruise with Captain Ron and it was quite memorable. Even though we just about froze (blankets from the BC helped) the cake was amazing and the view is, suprisingly, quite good. Worth the money in my opinion.
But the other two wanted table service and we scored the lower balcony of R&C each time (noted as the girl's 16th in our ADR - we didn't even ask for anything special). Compared to years ago when we just stood at the railing with everyone else, this was as good as it's gets. You can't beat finishing your meal and have the show as dessert (well, maybe a Trifle also).