I have a gen 3 Prius, and I
I have a gen 3 Prius, and I haven't been bothered by any of the issues you mentioned, I primarily drive at night and haven't had any viability issues I am almost at my next scheduled oil change interval and the oil looks pristine with no noticable drop in it's level, my car was built after they fixed the head gasket issue so that won't be an issue. So far the only issues I have had are the annoying beeping sound when in reverse, and that the steering wheel doesn't pull out very far forcing me to sit so far forward that I am constantly pushing buttons with my knees.