Good Afternoon, Captainwookie,
Generally I use a Chromega drum for 4 x 5 film developing, but it also comes in very handy occasionally when I need to knock out a quick contact sheet. As David says, it works fine with RC as long as you don't need to see the print during development. David's comment about large prints is also appropriate. Last summer, I had several dozen 16 x 20's (RC) to make; I did all of them in a drum because none of them required any manipulation during processing and I didn't have to set up the large trays in my limited room. Use of drums saves on chemicals also.
Konical