Personally... I would say, if you are very comfortable working in Reaper or any other DAW for that matter, I'd keep using what you are comfortable using unless you're simply trying to learn a new DAW.

Real Band is catching up to where it probably needs to be to be competitive with the other big names out there but it still has to go a ways further IMHO. I'm old school. Since I know how to get the job done in Sonar, I don't take the time to set down and learn a new DAW. However, I do love and use RB for it's track generation capabilities.

I export the raw waves to Sonar and do all my editing and mixing in Sonar. I don't try to tweeze anything in RB. IMHO... why bother? Do it all in one place, your final mix DAW.

You can find my music at:
www.herbhartley.com
Add nothing that adds nothing to the music.
You can make excuses or you can make progress but not both.

The magic you are looking for is in the work you are avoiding.