210709-1130 EDT
To use or not use a GE RR system or components is a question of function.
If you have a home or other location where a single SPST toggle switch will work for all locations, then you would never consider a relay approach.
If you have need to control exterior lights from a number of locations, then an RR approach is a very good choice, and just for those few circuits.
If you have a number of locations that need switching from more than one location, then you could use RR switching for just those circuits. This would mean different types of switches and operating technique for RR circuits than for other switched circuits.
At some point you then go to all RR switching for consistency of the actuating device (controlling switch).
If you want logic in the controlling circuit, then you should consider the RR approach. For example, if you want to be able to control an individual light with a single switch, but also want that light to be controlled along with a number of other lights with some other switch, then you need an RR or similar system.
Use of an RR system vs a solid-state system will depend upon your concern with reliability, power dissipation, operation under power loss and restoration conditions, ambient temperature, and various other factors.
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