First, at the risk of offending the diehard Oceania fans out there (who always seem to defend the line with a passion), I will try to be as accurate and even-handed as possible--so, please excuse me if I sound a little negative at times--I honestly do not intend this to be a negative review. I only want to be honest. ALL cruise lines do some things well, others less well. All have areas where they can stand to improve. The criticism, in part, is in hope that the cruise line will recognize the deficiencies and improve.
There is also the notion that EVERYONE has different criteria, different standards and put different weight to the importance of those criteria. There are no absolutes. There is no way for anyone to say ANY cruise line is better or worse in any area in any objective way and for it to mean the same thing to every reader. I might feel the entertainment is sub par, but someone else might love it--and to some people, they could care less as it is simply an unimportant part of the experience (Yes, we met people who never even went to a single show). I could say the food is excellent and someone else might think it poor--it's a matter of individual taste--perhaps influenced by what we're accustomed to eating back home or what we grew up with.
So, basically, what follows are MY opinions--based on MY criteria, my experience and my weighing of importance.