Thanks for your review - I am sorry the cruise did not live up to your expectations.
I would like to point out a few things, though --
As a smoker, I am sure you have noticed in the past few decades that your "rights" as a smoker have been steadily shrinking. I believe they will continue to deteriorate to the level of non-smoking ships (the planes, trains and busses). I am sure you can find plenty of thread on this debate.
As far as the kid/teen/adult pool, that probably addresses the many complaints from the adults about the kids taking over the pools. Although the adults cannot go into the kiddie pool (and the kids shouldn't go into the adult pool), I am sure that the tables and lounges in both areas were open to all.
As far as the AC not working -- did you contact the maintenance department and they refused/were not able to fix it?
As far as the cabin size, yes the ship's cabins (regardless of the line) are quite a bit smaller than hotel rooms.