This was returned without explanation and having spent a good while inspecting it, plugging it in and running it, and inspecting every component for defects, the only issue I can find is the lid and the base could do with a clean (sadly, I don't have the facilities to do this here).
Before everywhere went out of stock of this product, my last units sold on Amazon for around £150, and the heavy glass version is still available for a similar price. Happy to sell cheap to clear stock