I have a pair of Chameleon Slams that squeak cos I work in them! The shop carpet is really harsh on the soles and so the sole now appears to be internally breaking down. Due to friction heat I don't know but they have an impressive squeak. This is why in my case. But they cool as cool as, and are like a pair of slippers.
The only heated I've come across is the TNF heated one, cant mind the name. It was reckoned to be crap cos a) it only has two heated chest panels - leaving the rest of you cold, and b) the battery life was poor.
So its essentially an overpriced shell for gear freaks!