We had a similar one on a trip once. Did large trout on it OK. But I was thinking it's just a toy someone wanted to bring and justify buying. Packed small and flat, but heavy IMO.

While it did support a fresh fish nicely, ours was longer, not square. We didn't use it to cook with our pots and pans. We had stoves for that. It was a river trip so not much portaging. Still not for me, specially if portaging much. I'd just use a stove.

Hey if you like toys though, then go for it. They do work. Probably nice if you're only using it and cooking with wood. Smaller fire, smaller wood, concentrates heat, leave hatches and large saws at home.