Heavy quality and quick Sunpentown SO 2002 Oven

These type (flavorwave,nuwave) are basically high-efficiency inverted hot plates with added benefit of forced air circulation. Touted as cooking by conduction, convection and radiant heat.
I’ve seen countless shopping channel ads for these items cooking frozen steaks to perfection. Differences are container material, risers for the distance/level of the heating coils from the food and whether the container is a bowl or connected as a dome. Also, there is hearsay that the halogen lamp type is less effective. They are priced at about $100. I bought a Sunpentown Model SO2002 that has a heavy glass cooking container. It was $65 before shipping and handling. I declined choice of the other two because
1. I have familiarity with Sunpentown products.
2. I believed the product description.
3. I didn’t trust the heavy TV ad marketing.
4. I don’t think high heat and polycarbonate should co-exist for very long.