The biggest problem we ran into with CR ID was the rephacks. Did you know that even though =CR= has a Red-level visa to O-52 and NO- was easily able to get Yellow, the CR ID is rephacked hostile to Coalition civilians?
There's also a hostile Hessian rephack that's unlisted on the Mactan Network thing.
At that point I frankly got sick of dealing with undocumented rephacks that don't need to exist obstructing RP, probably won't be fixed for a while, and even when they do get fixed needlessly complicate correcting the reps after the rephack screws them up. Most of this, I suspect, stems from reusing former Guard factions for new factions and forgetting to remove the old, now-unnecessary rephacks.
There's also the matter of our very well documented history with the Outcasts, which would for practical purposes be near-impossible to act on had we stuck with CR ID.
The extra freedoms of the CR ID don't really do much for us either; our interest in warships is minimal, and outside of our immediate area we're not interested in initiating any fights because we don't have the resources for it. Again, primarily defensive.