Hot but flimsy and uneven
The burner is spotty but very hot, especially at the very top of the burner with a wall of blue flames shooting out across the top. It does a great job cooking IF you keep a very watchful eye and move the meat around regularly -- like every 15-30 seconds for steaks. A couple of steaks came out perfectly last night (M for my wife, MR for me). My grill has two searing burners side by side and one is cooler than the other, with the hotter on the far right side of my five burner grill. Know your heat temperature areas and keep on top of things or results will not be good. These areas with significant temperature differences are pretty small so I avoided calling them heat zones.
I've owned these burners for three years and use the searing burners from time to time. Most often, I use the regular cast burners. The mesh on top of the burners looks like a tiger attacked it with claws. One is particularly bad. I've ordered new meshes for the burner (Part number 30917 - Protective Screen for Searing Burner) from BBQ Guys for $20 each. When they come in next week, I will see how everything looks underneath the screen and determine how to even out the heat, if I can. Kudo's to Lion -- they are very helpful on the phone and via the internet. Good organization that needs to build a more durable searing burner.