Yes, DAWs are all different to suit different needs, and you can always use the one you want for whatever you choose to do. Some of us consider the realtrack/realdrum availability so huge that we end up needing a reason to leave RB as opposed to a reason to use it. If I need something it doesn't do I'll use another DAW at that point.

Realband excels above others at:
Generating/Regenerating tracks (audio and MIDI) like BiaB.
Multiriff - Generates lots of variations to more quickly assemble a track.
Pitch Shift audio; with the algorithm in use (Elastique) it does this quite well and pretty quickly.

other things I like and feel are better than some ..
Direct support of JBridge
A couple of the PGMusic FX included with RB including PeakLimit, RTA and Vinyl Tool make some tasks quick and easy.
Vinyl tool is liked by many who are transferring their vinyl albums to digital. Once discovered it is often used for this task.

MIDI editing is pretty powerful in RB compared to some others, with the data filter options (X2) it can do a lot in one pass. This is especially true if you use Sysex and uncommon CC's and such.
Also routing MIDI to ports; 16 ports with 16 channels and lots of flexibility.

Hidden backups; every time you save you can have a backup of the previous version stored (and with a different filename extension so it doesn't clutter your current lists).
I know a few people that didn't appreciate this until they needed it.
You can also control how many backups of a given file and how many altogether, and even decide what happens when you exceed desired limits.
If more people knew about this it may save them some time/effort when they think they lost work, or a file got corrupted, or a rogue plugin won't allow the song to open, or they messed up a mix ..

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I do not work here, but the benefits are still awesome
Make your sound your own!