Played a lot of Ra3 myself, mostly on gamespy.
Cnconline/revora is more similar to xwis - it's kinda the official successor to gamespy, but it isn't as full fledged as gamespy was.
The biggest thing that's missing in Red Alert 3 is automatch/quickmatch, the game could have a nice little resurgence with that added.
So would be really cool if cncnet did that for Ra3, much like they gave Yuri's Revenge a resurgence.