Is the health regeneration as good as Rad Child's was in New Vegas?

Possibly not as 'good' as in F4 you can't acquire a rad condition that gives you health regen all the time. The health regen is only when your taking rad damage, so these 2 effects pretty much counter act each other whether its a rad storm or being hit by a goul. In my view it's a useful perk in combat as only then is your health not full so it's able to regen some.

Should be epic in the Glowing Sea. Haven't tried it out yet though.