Thanks for the advice. I will enter in flight information whenever I rent now.
As far as the gold upgrades go, I know that nothing is guaranteed and I have to say that I do have low expectations so I can avoid being disappointed

I was just wondering when Hertz will send out the alerts if anyone has used them before.
I'm not gonna expect to count on it but just to have it as an alternative in case I don't like the car I get. I can always go to the gold aisle as well but I wouldn't expect much from there as well.
I wouldn't consider myself to be too picky of a renter but of course if there's a better car I would take it. Who wouldn't right?

So, does anyone have an estimate of when they receive the alerts in relation to their rental pick-up time?