Actually I do like Freedom Dining - just not the way that P&O operate it.
There are two major gripes that I have.
The first is that we like to have a couple of leisurely drinks before dinner and I don't want to be watching a pager/app all the time, or having just ordered a drink being summoned to the MDR - or worse still sat with an empty glass waiting to be summoned.
The second is, and this may be better on Iona, that if we are doing Freedom Dining then we like a table for two and the way that P&O cram as many tables in as they can it means that there is a row of six or eight tables and the waiters treat that as one table so everyone has to wait for the last one to finish a course before you get your next course.
If I could reserve a table at a specific time and it be a proper table for two, as in any other restaurant, then I would be more than happy to use freedom Dining.