I used my spatula to scrape some of the drippings off the sheets and onto the IR grates...added flavor to the profile.
The sheets aren't going to be used in every cook, but there are situations when you have small items (chopped veggies, small shrimp, etc) tha can fall thru to the fire. In addition, food like fish, eggs, and cheese, hashbrowns, etc can be cooked easily and WILL NOT STICK.
I won't use 'em for grillin' a steak, but if I have some onions and mushrooms on the side, they'll come in handy.
just sayin'...