Product review (3 stars): It works great, but.....
It works great. I don't mind the metal all around the outer edges. The main problem I have with it is the built in handle sticking up on the back of the unit. I understand it was designed to make it easier to lift out for cleaning, maintenance and replacement, but when using a large pot or wok, you may need to move it back a little further so you can also use the front burner. Unfortunately, doing that makes the pot/wok lift up and rest on the handle, thus tilting it and making it loose contact with the burner. Our old unit had no metal around it and no handle sticking up in the back and it worked much better for us.