I didn't know this was book 1! No fair!
Although I enjoyed the Mistborn books, I'm not sure what to make of this one. It's more like a western with trains and gun fights. I do want to read the next one, because this is a cliffhanger. The main character is a bit Clint Eastwood and a bit Sherlock Holmes. All the characters in the book are interesting. Too much time spent on the fight scenes for my taste, but I'm sure that will appeal to others.
The changes and introductions of new plot twists in the last few chapters make the next book look very interesting.