Hi there.
I absolutely love that IR part of it. It's an expensive unit (the half price ones are made in China, the expensive ones made in Canada), but it's worth every penny. I can do all kinds of stuff on the unit. I have a wood smoker tube as well, and some veg grills.
I haven't done anything that would be considered "regular" on a grill. Maybe a couple of chicken pieces, that's about it. No burgers, hot dogs, etc.
They do warn about fluids on the burner. They say solids are not a problem, as they do just ash up and fly away. It does glow very quickly. It also heats up the unit pretty well.