It seemed to me that a vast majority of the 1, 2, and 3 star reviews all stemmed from a misunderstanding of the product and perhaps a deeper misunderstanding of “home roasting” coffee. For the record, I’ve been home roasting for many years with a deep, stainless mixing bowl and a heat gun.
https://www.amazon.com/Behmor-5400-Customizable-Coffee-Roaster/dp/B00PKEZ3M6