Maureen, I have read Mina's review of the Catalonia. I haven't been there, but I can tell you that Natura Park has NO noise problem whatsoever. If you want a quiet - yet lively place, go to Natura Park instead.
Also, even though the beach at NP still bears the scars of hurricane George, I found the situation more and more serious as you go South, toward the Allegro (less sand, more trash)and the Catalonia.
A waiter like the one described by Mina (re: Japanese restaurant) would have been fired from NP in minutes - one of the reasons being that the Dominican authorities themselves instruct the population to be particularly nice to visitors. Anyone who has taken the Saona island ride must remember this sign right on the beach:
Don't throw garbage. Smile to tourists. Help develop your country. (in Spanish, needless to say...).
Jean-Claude