Well i just finished the first Mistborn book and i thought it was excellent. So im definitely going to be sticking around. My main problem with other books i tried to read, was their lore was too close to Dresden. One book even gave a slight nod to the Dresden files in the first few pages. I just kept finding myself saying "Magic doesn't work that way" or "That isn't how vampires are supposed to be" when trying to read other books.
I think Mistborn was so far removed and so well defined it got me over my hang ups on how i thought things were supposed to be in imagined realities.
I went out and bought the other two. Im really enjoying this series.