Easily the best so far, but there's a very unfortunate cliffhanger
If you felt unsatisfied by Book 3, a majority of you will greatly appreciate Book 4. Although the end will leave you extremely upset at a certain character and the cliffhanger is beyond brutal. With that said, book 4 feels like what book 3 should've been so I'm just going to call it book 2.5 from now and and refer to this one as book 3.
This is hands down the best book Aleron has written yet. The much extended length has a lot to do with that as well and It was the perfect amount of time to add new characters, reveal many secrets and give us an emotional journey akin to riding a pissed off rock giant. But that cliff hanger Aleron....you play too much fam.
One of the Best of Fantasy
To those who will know, this is easily Sanderson and Jordan tier. you can see the inspiration from the very first chapter, but somehow it feels entirely unique. I highly suggest that you buy and love the book.