Normally, when you read or hear some kind of evaluation, the good will come first, then that ominous word, "but," and the all the horrible stuff, which is what they really wanted to say in the first place. But since it is the good stuff I really want to say, I'll put the negatives first. I hope this doesn't confuse anyone too much.
You have to understand that Bane of Souls is (1) a first novel, and (2) a self-published novel. Having written a first novel myself, I understand that it takes a while to work the wrinkles out of your style, and having self-published, I understand that it is virtually impossible to find all the typos and rough spots on your own, even with a cadre of beta readers. Here comes the "but". BUT, don't let any of that stop you from reading this novel.
It's helpful to compare a work with another one, and the one that comes to mind first is Brandon Sanderson's Mistborn trilogy. I consider Sanderson quite a good writer technically and his system of magic in that series quite original, but overall his world strikes me as rather dull. There are long stretches where it doesn't seem as if anything is happening, where I had to continue by sheer willpower. White might not be as polished a writer as Sanderson, but he kicks his butt when it comes to world-building and threading together a narrative. There is never a dull moment; the action continues from cover to cover. Whereas Mistborn is largely a linear story (much like many of mine, I'm afraid), Bane of Souls maintains several different plot threads that interweave and interact often unexpectedly. There were some events that you can see coming, but rarely can you see how they will come about, or how they will be resolved. Much more than Mistborn, Bane of Souls keeps the reader busy. It might be safe to say that more things happen in White's one volume than in Sanderson's three.
Another way I judge a work is by how long it keeps running through my head after the fact. Except for Vin, whom I thought was a marvelous character, Mistborn didn't stay with me too long. That is probably because the world itself never seemed that real too me. White's world, however, is much more colorful and detailed. I keep thinking about everything that happens in the tower and town (none of which I will reveal). There were some details that aren't explained, but in whining about one of them to the author, he advised me that there are, indeed, explanations, and that he would either tell me or I could wait and read about them in a subsequent book. I opted for the latter. I can't complain about questions left unanswered until a later book; I do it myself.
Which leads to perhaps the most significant point of all. The real test of a writer is not the number of typos, or the number of stars that appear on Amazon. It is how much one book leads you to want to read another by that person. To answer that question, before I finished Bane of Souls, I bought his Journey to Altmortis, and it is only my current preoccupation with my own writing that has kept me from starting it. I am looking forward to it.
In short, if you like a fantasy novel with magic, monsters, greed and ambition, swords (and other forms of killing), vengeance, subterfuge, and some cool mysteries, Bane of Souls shouldn't disappoint. At the price I paid for it, I consider it quite a bargain.