They are fantastic! Yes, the heat is uneven, but this is what is so good...rather than having temperature settings, different parts of the oven heat to different temperatures, so keeping something on the bottom will be good for just warming, and having something on the top would be for faster, hotter cooking. They are great for hanging clothes up over (no damp clothes hanging on a clothes horse for years) and they warm up the kitchen without any electricity bills.
If I could get one in my rented flat I would!
(Sorry for the hijack).
Vicky