Fellow tool junkie, also purchased it and used it once. I want to make time to try more techniques with it, though.
The UTEE did turn yellow in it - It wasn't noticeable on the project, but it certainly was after I let it solidify and took it back out of the pot.
Somehow I'm thinking that if I purchase some of the extra pans for it, that I'll get more use out of it. But realistically, probably not