Dude, I know it's not written that clearly, but think about it for a second. The firmware update FIXES those problems, otherwise why have an update. It seems like there's lots of hysterics out there. Don't update for nothing! It seems like you've never noticed, sure it's a good thing to have your ISV settings saved, but until you actually notice that problem (i.e. actually use the ISF), it's a completely useless update.
I've had it for months and am satisfied with the default settings pretty much, I changed a couple things but haven't gone into the service menu, nor do I intend to until I get my anamorphic lens and get the firmware fixes that I really need.
btw, I'm installing my Elite acoustically transparent screen + Omnimount today, to be ready for my PS3 4 player gaming party with my buddies tonight!!! Gonna be AWESOME!!