Hi db,
You do have the correct item identified.
The height is not adjustable, my wispelights just fit under the grill slats, I use small rocks to level and has been very stable. The sides also do a good job of blocking the wind.
Not sure if it's intended use is the Q/BWCA or not, but that's where it's used. Purchased it from Piragis. Still need to take the same precautions that you would using most stoves placed on the ground, nobody wants a fire.
I also take a grill and place on rocks to cook most of our meals, can't beat bacon cooked over wood.
The heavy pan idea came from somewhere off this site. Instead of trying to fry whole fillets, we chunk the meat, put a thin layer of oil in the pan and fry away. The pan nicely on the  grill and I get a better/larger heating surface rather than my round pan.
We base camp and do day trips, so the extra weight makes little difference.

Dadman