This is Charles Soule at his best. volume 1 was a bit slow to begin with, but having just read the final issue, it was necessary for understanding what the author was trying to say about the wannabe villain.
Volume 2 showed me why Charles Soule is still my favourite Star Wars comic writer. He understands the universe and characters so well. He is so good at taking them on new journeys, even between 2 points we already know, and still giving surprises and exciting moments. This volume is up there with some of Charles best, and gives so much more value to Kylo Rens character.