Normally my idle drain, after an 8hr sleep,(me) I lose 2-3%. 100%-98/97% at most. Usage SOT depends on how you use your device as it varies from users. I never pay attention to battery stats often because it is all subjective and different with every user. I have never had any issues while using Omega and have been majorly impressed with performance and battery life.
Yeah, the Kernel is great. No question.