We dined at R&C for Candlelight and it was very good; I prefer the menu there over the current menu at Coral Reef (though we've had nice meals there, too, in the past). I loved the cheese tray appetizer and the salmon entree.
I will also note that unlike Candlelight, which had crazy stand-by lines each time we were at Epcot, I don't think a package is needed for the Broadway shows unless you just really want a close spot (and don't have an AP to get a reserved spot for "free"). We went on MLK day - the park was moderately busy but we wandered in at 2 minutes til the 5:30 show and easily got seats for 6 people. Not up close, but there is little to actually watch (it's just 2 singers - no staging), it wasn't a big deal. It never filled up. So if you aren't sold on any of the options, you would probably be fine to go standby.
(we tried to get AP reserved seats but by the time we wandered to American Adventure and waited in line, they only had 8pm show)