I've been into RnR several times for brunch on the weekends. Service is always surprisingly quick and efficient, even when it's standing room only in there.
The downfall -- for me -- is that they have a live DJ during the day Saturdays and Sundays. I think they usually start that around noon or 1pm. Some may love that daytime club scene at a restaurant. I think it's obnoxious. So if you want a more chill environment, go earlier in the day.
$15 bottomless mimosas and bloody mary's on the weekends. Can't go wrong there.