For Choppes, there is a cover charge, but according to the cruise director, the cover charge is well worth it. I haven't tried it; I've always gone to either the Windjammer or the dining room.
2007 - Majesty of the Seas (Bahamas)
2009 - Enchantment of the Seas (Western Caribbean)
2010 - Freedom of the Seas (Western Caribbean)
2013 - Golden Princess (Alaska, roundtrip from Seattle)