I'm always baffled by peoples hatred of QS at HS. We've eaten QS at that park many times and while we're not "Foodies" we've never been disappointed. Granted, none of us are picky and we have a very "go with the flow" mentality, but it would take a truly bad meal to make me rant about the quality the way I've seen some people do over the years. It's better than typical fast food and it's on par with virtually ever other park QS around the property. I recommend Starring Rolls - I told a friend of mine to go there two years ago and she's still talking about how much she loved the sandwich and has it on her list for her next trip. We've eaten at ABC Commissary multiple times and it's always been good - nothing spectacular about the menu, but on par with something like Cosmic Rays. Backlot Express is the one we tend to avoid, but not because of the food - because I would rather not sit in the heat and it always seems even hotter in that area than in any other place in the park.
If you want to experience truly bad quick service, head over to Universal. I've had better lunches at my sons' school.