Just in case anyone was wondering, the manufacturer is:
Rocky Mountain Cookware
I called and the lady was extremely nice, and talked me through it. They make commercial and residential models. The residential model is 12x20 and is 10 guage, while the commercial is 14x23 and is 7 guage (thicker). My cooktop allows me to use the larger, so I will likely opt for the heavier commercial model.
It is carbon steel, and it does need to be seasoned. It comes with instructions. She indicated they are the only ones in the states to make this item. Anything else comes from China. Frankly, this is the only one i found. They are a small company with 5 employees and are growing rapidly.
For $50, I'll give it a shot and will report back!