I would monitor the reviews of real people who have actually taking the POA (and ignore all the NCL Appoligists who earn a living involved with the cruise industry) and monitor real results. Are the waits for dinner getting under an hour (much less the current 2 I am hearing about now), is the Buffet better (are the eggs actually cooked), are dinners arriving in a timely manner? Are the Bars fully staffed? etc etc etc.
If things don't get a lot better in two months I think you know what I would do.